Use this non-abrasive eraser for working on delicate surfaces such as drafting films and tracing papers. Multipurpose eraser works wonders on absorbing graphite as well as erasing India ink. Non-abrasive eraser for delicate surfaces such as drafting films and tracing papers. Multipurpose eraser absorbs graphite as well as erases India ink. Made of a unique, non-abrasive, non-smudging vinyl which forms fine, super-absorbent strands when erasing.