Pentel Hi-Polymer Non-Abrasive Latex-Free Eraser Caps, White, Pack of 50 (Bundle) Hi-polymer erases cleanly without scratching or tearing paper surface while leaving no dust Designed to lift lead markings off paper with very light pressure Will not harden with age and remains soft and ready to use Cap-eraser fits most mechanical and all standard woodcase pencils Includes 5 packs of 10 erasers.