Oh, my artistic side is coming out! I do draw and sketch an aweful lot. It is a .59 cent eraser by Sanford...about 2" x 1" rectangular and tan. Go ahead and google it. It may be ArtGum and not two words. I got the idea when I bought a kit to clean suede shoes and it came with an eraser-like object to rub on the suede...I thought, 'I wonder if that ArtGum eraser of mine could be useful to spruce up the handle of my Viva-cite!' And, I was pleased with the result. You should be able to buy one at any office supply store or art/craft store...it is definately worth the investment.