Ace 5 in. L X 3 in. W X 1 in. 60 Grit Coarse Extra Large Sanding Sponge

The sponges have an aluminum oxide mineral coating on a foam pad with a waterproof bonding system, which allows you to use these sponges for both wet and dry sanding.
For use on wood, metal, fiberglass and painted surfaces
Extra flexible for sanding irregular shapes, contours and corners
Rinse and reuse