The acclaimed Inkredible Erasers are a gum base block eraser with added silica grit. Imagine an art gum eraser had a baby with a cube of sugar. Traditional rubber ink erasers are rubber with grit, and will gleefully create a wear mark on sensitive pages when torque is applied, not so with Inkredibles. These erasers gently abrade themselves as you use them and work better than any other ink erasers on the market. Remove inscriptions and library markings without making holes. For best results use on better papers, such as that used for resumes and books. Also have been found to remove: crayon, dead bugs, stains, light foxing, fingerprints and other such nonsense depending on the paper surface.
Available in Fine (gray) for general use and Coarse (white) for extra oomph. We used to have the black extra fine but that factory burned to the ground.