Eraser/Rubber Whatever.... nicht mein.. when my friends lend me an eraser, i stick 0.5mm leads in them. so later, they use their eraser, it writes. the best part is they realise after they have up a w Eraser/Rubber Whatever nicht mein when my friends lend me an eraser i stick 0 5mm leads in them so later they use their it writes the best part is realise after have up a w