Art Erasers Value Pack contains 3 different styles of erasers to meet all your needs. The Design Kneaded Rubber eraser is ideal for erasing highlighting pencil, pastel or charcoal drawings. Pliable eraser is easy to stretch and shape to cover broad or fine detailed areas. Kneading the eraser makes it self-cleaning so you can use it longer. The Design Artgum eraser should be rubbed briskly over a drawing surface to erase with no damage to the surface. The fine powder produced from rubbing dry cleans by absorbing the graphite or dirt from the drawing surface. The Design 2000 erases cleanly without abrasion. Perfect for studio, office and general erasing, it works well with all types of paper and film.