General's Kneaded Eraser
The General’s Kneaded Eraser by General Pencil functions by adsorbing the graphite marks on your paper. It won't wear down like plastic erasers or leave behind eraser residue, so it lasts much longer than other eraser tools. Start "warming-up" your kneaded eraser by pulling and folding its body. Mold the eraser into the shape you need in order to pick up leftover graphite underdrawing on your watercolor paper. To clean, re-stretch and knead the eraser on itself.