I owned a little battery-powered, handheld electric eraser when I was in middle and high school. It cost maybe ten dollars, and it was so great. Amazing precisi

I owned a little battery-powered, handheld electric eraser when I was in middle and high school. It cost maybe ten dollars, and it was so great. Amazing precision and super effective -- way better than the eraser nub at the end of a pencil. Would recommend.