Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Erasers Categories
Best Choice Amazon Basics 
Amazon Basics Block White Eraser, 10 pack Efficient: quickly removes lead-pencil marks from paper without smudging or smearingSTAEDTLER 
Staedtler Rasoplast Eraser (Pack of 2) Comfort quality for high-quality erasing performance, minimal crumbling
2x Rapid Erasers Smudge Resistant Pencil-Eraser Rubber Stationery NEW AU Single eraser: 1.18cm (H) x 2.3cm (W) x 6.15cm (D). Material: Thermoplastic rubber (TPR). We place high value on providiSTAEDTLER 
STAEDTLER Mars Plastic, Premium Quality Vinyl Eraser, White, Latex-free, Age-resistant, Minimal Crumbling (526 50 BK) 4 Premium quality white vinyl eraser for first-class erasing performance!
Portable Magnetic Home and Office Board Whiteboard 4 Sizes Marker Eraser Button Allowing for pens and other stationery to be kept close to hand. Light-weight and wall mountable. Two movable hooks desiPvieked 
Pvieked 50 Pack White Rectangular PVC Pencil Eraser, Soft & Durable, Latex-free, Non-toxic, Safe for Kids, Art, School, 🌎[High Quality Materials] Premium quality white pencil eraser, PVC material, latex-free, no pungent smell, no harm to tBest Value Fabselection 
Fabselection 2B Erasers Bulk, 30 Pcs Pencil Eraser, White Eraser, 2B Soft Rubbers Erasers for School Office Supply Stati 【Premium Material】:PVC material, latex-free, no pungent smell, no harm to the body, soft plastic erasers will not cause100/200 Nano Magic Sponge Eraser Cleaning Melamine Multi-functional Foam Cleaner Sponge Size (per): 10 6 2cm / 3.94 2.36 0.79in. Free of chemical ingredients, non-toxic, does not hurt the skin when usi19% Off Dreamm Dreamm Cute Animal Shapes Erasers for Kids - Bulk 16 Pack - Colorful Fruit, Ball, Sakura, Dinosaur Shapes - Pencil Erase 【CUTE ERASERS - 4 STYLES】Erasers are cute, novelty and fun, which is very suitable for children's stationery or gifts. I80 PCS Japanese Erasers(Animal,Fruit,Vegetable,Dessert) Bulk Kids Adorable and bright in color, a must have for any treasure box, classroom treats. Who said erasers had to be boring?. ThFaber-Castell Faber-Castell Dust-Free Eraser White 2 Pack, (82-187165) Product Type: Writing InstrumentURSKYTOUS URSKYTOUS 60Pcs Animal Erasers Desk Pets for Kids Animal Pencil Erasers Bulk Puzzle Eraser Toys Gifts for Classroom Priz PUZZLE PENCIL ANIMAL ERASERS: Pack of 60 animal erasers desk pets simple puzzle erasers toys in realistic and cute shape2x Rapid Erasers Smudge Resistant Pencil-Eraser Rubber Stationery NEW AU Single eraser: 1.18cm (H) x 2.3cm (W) x 6.15cm (D). Material: Thermoplastic rubber (TPR). Exclusions may apply to otherFaber-Castell Faber-Castell Dust-Free Erasers, Blue and Pink Medium – Blister Pack of 2 (82-187194) Exclusive, low-mess formula keeps work areas clean2x Rapid Erasers Smudge Resistant Pencil-Eraser Rubber Stationery NEW AU Single eraser: 1.18cm (H) x 2.3cm (W) x 6.15cm (D). Material: Thermoplastic rubber (TPR). We will respond to you withinAshton and Wright Ashton and Wright - Classic Eraser - Latex Free Plastic Rubber - Pack of 5 Pastel Phthalate and latex free erasers from premium stationery brand, Ashton and Wright.2x Rapid Erasers Smudge Resistant Pencil-Eraser Rubber Stationery NEW AU Single eraser: 1.18cm (H) x 2.3cm (W) x 6.15cm (D). Material: Thermoplastic rubber (TPR).Amazon Basics Amazon Basics Rectangular Eraser, 24 Count, Pink Removes marks: lifts lead-pencil marks off paper without smudging or smearing2x Rapid Erasers Smudge Resistant Pencil-Eraser Rubber Stationery NEW AU Designed for precision and ease, they make correcting errors simple and stress-free. Material: Thermoplastic Rubber (TPRFaber-Castell Faber-Castell Dust-Free Eraser Black, 2 Pack, (82-187157) 2 Large Dust-Free erasers in black colour2x Rapid Erasers Smudge Resistant Pencil-Eraser Rubber Stationery NEW AU Single Eraser: 1.18cm (H) X 2.3cm (W) X 6.15cm (D). Material: Thermoplastic Rubber (Tpr).STAEDTLER Staedtler Rasoplast Eraser, Large, White Comfort quality for high-quality erasing performance2x Rapid Erasers Smudge Resistant Pencil-Eraser Rubber Stationery NEW AU Single eraser: 1.18cm (H) x 2.3cm (W) x 6.15cm (D). Material: Thermoplastic rubber (TPR).Bantex Bantex Pencil Rubber Eraser 62mm X 20mm PVC-Free White Bantex‐branded Pencil Erasers are good quality, PVC free erasers.2x Rapid Erasers Smudge Resistant Pencil-Eraser Rubber Stationery NEW AU Single eraser: 1.18cm (H) x 2.3cm (W) x 6.15cm (D). Material: Thermoplastic rubber (TPR). We will respond to you withinKEYROAD Keyroad Roo Fix Triangular Shape Eraser 3-Pieces Set Ideal for school, office and artistic purposes2x Rapid Erasers Smudge Resistant Pencil-Eraser Rubber Stationery NEW AU Single eraser: 1.18cm (H) x 2.3cm (W) x 6.15cm (D). Material: Thermoplastic rubber (TPR). We will respond to you withinSTAEDTLER Staedtler Exam Dust-free Eraser, Black (Pack of 2) Premium quality for exam erasing performance for erasing lead pencil2x Rapid Erasers Smudge Resistant Pencil-Eraser Rubber Stationery NEW AU Single eraser: 1.18cm (H) x 2.3cm (W) x 6.15cm (D). Material: Thermoplastic rubber (TPR). We will respond to you withinJsehchya 35PCS Fun Animal Fruit Pencil Topper Erasers for Kids Bulk,Cute Top Erasers Caps for Pencil,Back to School Party Gifts ( You will get 35 kinds of durable animal and fruit pencil erasers, which are made of rubber and easy to remove stains.100-300 Nano Magic Sponge Eraser Cleaning Melamine Foam Cleaner Multi-functional Free of chemical ingredients, non-toxic, does not hurt the skin when using it. Color: White. Item size: 10 6 2cm/10 7 3cTombow Tombow EN-DC 19 g Mono Dust Catcher Eraser, Black, 1-Pack Erases cleanly with minimal pressure without scratching or tearing the paper surface100-500Pcs Nano Magic Sponge Eraser Melamine Foam Stain Dirt Remover Cleaning These powerful, chemical-free cleaning pads work like magic—just add water and wipe! Perfect for tackling tough stains iFaber-Castell Faber-Castell Kneadable Eraser Grey, 2 Pack, (82-127018) Perfect for black leads or lightening charcoal and pastelSIYZHOP Retractable Pencil Eraser,4 Pack Cute erasers for Students Kids School Office Pencils Painting Drawing Gift Supplies 4 color cute erasersLURICO 36 PCS Animal Erasers, Bulk Pencil Erasers Come Apart Puzzle Eraser Toys for Classroom Rewards, Party Favors, Games Priz 🐎【 Pack of 36 different animals】 : Your kids will love these cute animal erasers. (Please Note: Few of these animals maBEZANU BEZANU Animal Eraser, 200PCS Mini Animal Fruits Pencil Erasers for Classroom Prizes, School Supplies Gift (1cm/0.4in) 【Soft & Quality Material】These mini erasers are made of eco-friendly soft and safe TRP material. Durable and easy to remDreamm Dreamm 4B Erasers 30 Pack Pencil Erasers Yellow Erasers for Kids Bulk for Students School Supplies Office Prize Gifts Cl 【4B YELLOW ERASERS】The erasers are pure yellow rectangle. The yellow erasers are not only suitable for students or childWEZCHUGHAOL WEZCHUGHAOL 30 Pack Pencil Erasers, Large White Erasers Classroom Set for Kids Teachers as School and Office Supplies fo 【 High quality Rubber 】: The eraser for School is made of high-quality materials, and the rubber is soft, with less debrHAIKING HAIKING Mini Pencil Erasers, 50 Pcs Smiling Face Mini Erasers for Schools, Office, Homework, Painting (Multi Style) 【Safe and Effective】 The mini pencil eraser is made of soft TPU material. Very safe, durable. Easy to remove smudges, anFaber-Castell Faber-Castell Kneadable Eraser Grey, (82-127020) Perfect for black leads or lightening charcoal and pastelPentel Pentel Hi-Polymer Block Eraser, White, 10/Box (ZEH10PC10) High quality latex-free eraser removes lead easily and cleanly with very little pressureIEFFPIN 40 PCS Mini Erasers for Kids, Cartoon Animal Vegetable Cake Dinosaur Theme Pencil Eraser Mixed Set, Kawaii School Suppli Cute Desktop Pets: These kawaii eraser can be used as collectible desktop pets, with rich colors and a wide variety of bManwetye 40 PCS Japanese Animal Erasers, Bulk Pencil Erasers Japanese Come Apart Puzzle Eraser Toys for Classroom Rewards, Party 【Great Variety】:These 3D puzzle erasers set come with a variety of animals individually-wrapped, at least 40 different aCoehaopike Coehaopike 8pcs Ice Cream Erasers Funny 3D Fruit Popsicle Erasers Colorful Jelly Erasers for Kids Student School Office These Erasers are made of good rubber material, safe and practical.Faber-Castell Faber-Castell Plastic Eraser, Large (F188520) Vinyl construction Ideal for clean and soft erasingPaper Mate Paper Mate Erasers Pink Pearl Large Erasers, 12 Count Smudge-resistant: 100% latex-free and smudge-resistant eraser for clean pagesxutong 80 PCS Japanese Erasers(Animal,Fruit,Vegetable,Dessert), Bulk Kids Pencil Erasers for Classroom Rewards, Party Favors, G 【Great Variety】:These 3D puzzle erasers set come with a variety of animals +fruit + vegetables + desserts individually-wxutong 40 PCS Japanese Erasers(Fruit,Vegetable,Dessert), Bulk Pencil Erasers for Classroom Rewards, Party Favors, Games Prizes, CREATIVE DESIGN: Set of 40 delightful food-themed erasers featuring fruits, desserts, and snacks, each crafted with intrManwetye 95 PCS Japanese Erasers - Fun and Colorful Animal,Fruit,Vegetable,and Dessert Designs - Perfect for Classroom Rewards,Pa 【Vibrant Variety】: With at least 95 different erasers included, this set offers a colorful and fun selection of animals,Supcomsta Supcomsta 4 PcsRetractable Eraser Pen - Cute Stationery Pencil Erasers for Kids, Kawaii Eraser Set with Fun Designs, Sch Retractable Eraser Design: This pencil eraser features a push-up mechanism for easy use. The eraser pen is compact, portMaped Maped 119522 Pixel Party Erasers (Pack of 3) Ideal for use at home, school or in the officeWELANE WELANE Cute Erasers, 12 PCS Unicorn Donut Pencil Eraser for School Supplies, Classroom Prizes (3cm/1.18in) 【Premuim & Durable】Our cute erasers are made of premium PVC, not easy to break, with a comfortable touch and solid textuGeneric 6 Scented Smelly Erasers Rubber Party Favour Treat Loot Bag Birthday Eraser School 6 Scented Smelly Erasers Rubber Party Favour Treat Loot Bag Birthday Eraser SchoolJuxtapiq Eraser, 20 Pcs Pencil Eraser, 2B Soft Rubbers, Rainbow Erasers,for School Office Supply Stationery,Home Rewards,Sketchin [Quality material] : rubber eraser is made of high quality PVC material, non-toxic and harmless, soft texture, can be usMGTECH 300 Pieces Mini Animal Fruit Erasers for Kids Bulk, Small Cute Pencil Erasers Assortment for Home School Work Rewards, P Novelty erasers with vibrant colors and cute shapes, loved by childrenTombow BooTool Mono Plastic Eraser 10piece Pack [Japan Import] PE01 MONO / 1969 / 1969 / 1969 / 1969 / 100 / 100 / 100 / 100 / 100 / 100 / 100 / 100 / 100 / 10Ashton and Wright Ashton and Wright - Classic Eraser - Latex Free Plastic Rubber - Pack of 5 White Phthalate and latex free erasers from premium stationery brand, Ashton and Wright.WELANE WELANE Mini Erasers, 150 PCS Christmas Patterns Pencil Erasers for Classroom Rewards, Party Favors 【Premium Quality】These mini Christmas erasers are made of high quality rubber. Its nontoxic, odourless, effective and eaManwetye Manwetye 40 PCS Japanese Erasers(Fruit,Vegetable,Dessert),Bulk Kids Pencil Erasers Puzzle Eraser Toys for Classroom Rewa 【Great Variety】:These 3D puzzle erasers set come with a variety of fruit + vegetables + desserts individually-wrapped, awaremew Waremew 8 Pcs Creative Retractable Pencil Erasers with Brush, Colored Push-Pull Rubber Eraser for Students Kids School O Easy to use:Retractable rubber eraser with a push-pull design makes it easier to store, and it is also designed with a rxutong 40 PCS Japanese Animal Erasers, Bulk Pencil Erasers Japanese Come Apart Puzzle Eraser Toys for Classroom Rewards, Party 【Great Variety】:These 3D puzzle erasers set come with a variety of animals individually-wrapped, at least 40 different aManwetye 40 PCS Japanese Erasers(Fruit,Vegetable,Dessert), Bulk Kids Pencil Erasers Puzzle Eraser Toys for Classroom Rewards, Par 【Great Variety】:These 3D puzzle erasers set come with a variety of fruit + vegetables + desserts individually-wrapped, aCengde 4+1Pack Rubber Erasers Sliding Retractable Eraser, Assorted Soft Colors Pastel Erasers Push Pull Aesthetic with for Stud package included 1pcs push-pull retractable eraser with plastic sleeve （7.15 x1''）and 4 refill erasers(2 x 0.4 ''), suitTiconderoga Ticonderoga Dixon Office and School Eraser Combination Set, 15 Eraser Multi-Pack, Multicolored (38931) Combination of 12 pencil top and 3 hand-held eraserswaremew 4 Pack Sliding Retractable Click Eraser Assorted Soft Colors Pastel Erasers Push Pull Aesthetic Erasers with Plastic Sle Unique design:Our Waremew pencil retractable eraser with a push-pull design makes it easier to store, it is easy to useYISAN YISAN Erasers,8 Pack,Pencil Eraser,White Erasers Dust-Collecting,Medium Size,Single Line Dust for Drawing,71341 8 Medium Size Erasers (2*5cm/0.8*2in) - Ample supply for all your writing and drawing needsAshton and Wright Ashton and Wright - Classic Eraser - Latex Free Plastic Rubber - Pack of 5 Pastel "Phthalate and latex free erasers from premium stationery brand, Ashton and Wright."Stoepeoco Magnetic Whiteboard Eraser, 24 pcs Dry Eraser with Thick Felt Pad, Dry Erase Whiteboard Cleaner for Students Home Office Material:Whiteboard eraser made from high quality foam, magnet and felt fabric, washable and reusable.SAYEEC SAYEEC Cute Pencil Erasers, Cartoon Animal Themed Erasers with Cover and Roller, Removal Pencil Eraser Shaving Roller Ca COMFORTABLE GRIP: The erasers adopt soft rubber edging design for a comfortable grip. Note Correct Operation Method: WhePentel Pentel - Hi-Polymer Jumbo Plastic Erasers - White - Pack of 4 High quality latex free eraser from Pentel for super clean results.Derwent Derwent Battery Operated Eraser Pen, Includes 8 Replacement Erasers, Suitable for Graphite, Coloured and Pastel Pencils, Battery-operated eraser for fast and precise erasing, Perfect for professional and amateur artists of all ages as well adeli Deli E3043 Exam Eraser, 40 mm × 22 mm × 12 mm, Black High-quality 2B exam eraserpandaonly pandaonly 9 Packs Whiteboard Erasers,Panda Animal Shaped Dry Wipe Glass Board Cleaner Chalkboards Eraser for Classroom H 【Meticulous Design for Wipping Easier】-Our Panda magnetic whiteboard erasers has adopted the body grip design to improveFaber-Castell Faber-Castell Dust-Free Erasers, Blue and Green Medium – Blister Pack of 2 (82-187193) Exclusive, low-mess formula keeps work areas cleanFaber-Castell Faber-Castell Dust-Free Erasers, Blue and Green Medium – Blister Pack of 2 (82-187193) Exclusive, low-mess formula keeps work areas cleanRoczential Roczential 8-Pack Mini Dry Erase Erasers, Magnetic Whiteboard Dry Erase for Classroom, School, Home and Office (5 X 5 cm 【Package】You will receive 8Pcs dry erase erasers in four colors, two for each color.22% Off Maped Maped Universal Gom Stick Eraser Protective cover design to keep eraser clean10% Off viiotu Viiotu Retractable Pen Style Eraser 4 Pack, Refillable Eraser Pen,Push Design Pencil Eraser for Kids,Great School Presen ✏️ 【PRECISION ERASING WITH KID-FRIENDLY DESIGN】：Our Viiotu retractable pen-style eraser (4-pack: Gray/Blue/Green/Pink) fDerwent Derwent Art Eraser and Soft Art Eraser, Blister Pack, Professional Quality, 2301963 General-use eraser and soft eraser for precise and soft erasing, Perfect for professional and amateur artists of all ageGeneric 32PCS Dry Erase Erasers, Magnetic Whiteboard Dry Eraser, Mini Chalkboard Cleansers, Supplied in Classroom, Office, Home 🏄【Bulk Quantity】: With 32 pieces, this set provides ample supply for classrooms, offices, and homes, ensuring you alwayFaber-Castell Faber-Castell Excellent Dust Free Extra Soft Clean White Pencil Eraser Bulk Pack Suitable for Drawing Art Office & Schoo Super Save Box of 30 erasers (4 x 1.9 x 1.2 cm each)Pentel Pentel Clic Retractable Eraser with Grip, Assorted Barrels, 3 Pack (ZE21BP3M) Latex-free white refill eraser for Sharplet-2, Client Pencil, Sensi-Grip 120, Sharp, Graph Gear series, Lancelot mechaniFaber-Castell Faber-Castell Kneading Rubber Eraser (4) Kneadable erasers are the perfect alternative when it comes to correcting or clarifying drawings with charcoal or pencilPentel Pentel Hi-Polymer Eraser Jumbo Size White, 1 Eraser (ZEH-99) Micro capsule formula gives super-clean resultsArtme Artme Electric Eraser/Automatic Rubber - 22pcs Refills Included (2.3mm and 5mm) - Sketch, Architects, Engineers & Studen SPEEDY, CLEAN, EASY. Our electric eraser is designed for a fast-paced lifestyle, and for the cleanest results. It’s poweSTAEDTLER Staedtler Stick Eraser, Blue (3 Pack) It's new formula produces less eraser dust.GOPORIPO Dry Erase Erasers, 12 Pack Magnetic Whiteboard Dry Erasers, Dry Erasers for Whiteboard, White Board Erasers for Classroo MATERIAL AND SIZE: Made of high quality EVA with a high density felt bottom. Size: 2 x 2 x 0.75 inches, environmentallyOWLKELA OWLKELA 30 Pack Whiteboard Eraser for Kids and Adults, Washable and Reusable Magnetic Whiteboard Eraser for Cleaning Dry 【Top Quality】Made of EVA material and high density felt bottom. strong adsorbability, the whiteboard cleaner can be cleaSTAEDTLER Staedtler Mars Plastic Pencil Eraser Rubbers School Office Drawing - Pack of 5-526 53 Staedtler Mars erasers combine high quality performance with convenienceTombow Tombow PE-04AB 19 g Black Mono Block Plastic Eraser, Medium It removes marks cleanly with little pressure and no paper damageSennelier Sennelier Soap Eraser, 68x37x18mm - Fast Removal of Large Areas of Drawing, Soft with No Sharp Edges - Ideal for Life Dr FAST REMOVAL OF LARGE AREAS: The Sennelier Soap Eraser excels in quickly erasing large areas of drawing, making it an es30% Off STAEDTLER Staedtler Premium Minimum Crumble, Mars Plastic Eraser, Card 2, 65x23x13mm, 2 (526 50BK2) Premium quality for first-class erasing performanceFaber-Castell [Pack of 4] Faber-Castell Large Pencil Eraser Dust Free Clean and Extra Soft Erasing for Art, Office, School USE (6.2x2x Dust roll together. Erase cleanly, leaving minimal traceGEDDES Raymond Geddes 69836 Mash Ups Scented Erasers For Kids (Pack of 24) Kneadable Erasers: These mini food erasers are made of durable rubber that helps remove pencil marks; Pull and twist theSTAEDTLER STAEDTLER Rasoplast Combi Erasers 3 Pack, 526BT3BK3D, Minimal Crumbling, Sliding Sleeve for Convenient Handling, Phthala Comfort quality for high-quality erasing performance28% Off STAEDTLER Staedtler Lumocolor Whiteboard Dry Wipe Eraser Lumocolor whiteboard wiper for dry-wiping whiteboardsSTAEDTLER Staedtler Mars Plastic Eraser Refillable Holder, Includes Eraser (52850BK),Blue Keep it clean, people! Our refillable eraser holder + stick eraser is ready for smooth, smudge-free correction, no smearSTAEDTLER Staedtler Covered Eraser - Pack of 24 erasers Minimal crumbling, an ideal accessory for artistsFaber-Castell Faber Castell Kneadable Art Eraser VERSATILE ART ERASER: Perfect kneaded eraser for artists when correcting and lightening charcoal, graphite and pastel drDACUAN DACUAN 2B Erasers Bulk, 30 Pcs Pencil Eraser, White Eraser, 2B Soft Rubbers Erasers for School Office Supply Stationery 【Premium Material】:PVC material, latex-free, no pungent smell, no harm to the body, soft plastic erasers will not causeU Brands U Brands Side Magnetic Dry Erase Board Eraser, White Premium felt surface40% Off PLUS Plus ER-100AIF-2P 36-646 Air in Mt. Fuji Eraser (Limited) Fuji Tsuki Fuji ER-100AIF-2P Limited edition design for the very popular Mt. Fuji eraser. Features rabbits, moons, and sippings on the theme of the mTombow Tombow Mono Stick Tri-Colour Barrel Plastic Eraser An easy to use pen-type eraser-
Eraser Amazon Basics Amazon Basics Black Rectangular Dry-Erase Whiteboard Eraser, 4-Pack for Home, School, or Office 4-pack set of dry-erase whiteboard erasers; ideal for home, school, or officeZHEZHE ZHEZHE 50 Pcs/lot Magic Sponge Eraser Multi-Functional Melamine Foam Cleaner 100x60x20mm 🔥 ✔ HIGN-DENSITY MATERIALS ✔ : While some other erasers are too small, don’t work, or simply fall apart, we raised theOWLKELA OWLKELA Magnetic Dry Eraser Board Erasers for White Board, Whiteboard Erasers for Kids Classroom, 4 Pack, Perfect for Cl 【Top Quality】Made of premium quality foam material and high density felt bottom.non-toxic, no smell, strong adsorbabilitQuartet Quartet Mini Magnetic Eraser Mini magnetic erasers are designed to remove ink residue for dry-erase whiteboards, perfect for small boardsTombow Tombow Mono Sand Eraser Natural rubber latex and silica grit18% Off Tombow Tombow Mono Zero Silver Barrel Rectangular Eraser, 1 Pack A high-precision eraser for pinpoint erasingTombow Tombow Mono Knock Eraser, Blue, 1-Pack Product Type: Eraser40% Off Ddaowanx Ddaowanx Whiteboard Eraser, Magnetic Dry Erase Eraser, Glass Board Eraser,School and Office Supplies, Pack of 2 (Black) 【Unique Design】:The package includes:2 Pack rectangle whiteboard erasers. 2 replaceable washable wipe cotton inside eachStoepeoco Magnetic Whiteboard Eraser, 2 Pcs Blue Dry Eraser with Thick Felt Pad, Dry Erase Whiteboard Cleaner for Students Home Of Material:Whiteboard eraser made from high quality foam, magnet and felt fabric, washable and reusable.STAEDTLER Staedtler Karat Kneadable Art Eraser High quality kneadable putty eraser