general /
【How-to】How do you use a kneaded eraser
Can Kneaded Erasers Get Wet? … While water won’t damage your kneaded eraser, it also won’t help clean it as well as kneading it will. However, if you use soap and water, you may remove some exterior graphite or charcoal. If you try this, make sure that you wash the eraser, knead it, then rewash it.