These are the ideal, all purpose eraser. Easily removes any dry media that you are working in without ruining your paper. Best of all, the maleable rubber can be kneaded and formed into any shape that you want. This allows you to remove tiny specks or large areas with ease. This is FineArtStore.com employee David Hoffend's favorite eraser and one of his all time favorite drawing tools! To see some of David's pencil work, please take a look at the Artist Gallery on this site. David says "None of those drawings would have been possible without my kneaded rubber erasers!"