3M™ SandBlaster™ Sanding Sponge 21907-180, 3.75 in x 2.5 in x 1 in

3M SandBlaster Sanding Sponge 21907 180, 3.75 in x 2.5 in x 1 in, Bulk. The 3M SandBlaster Between Coats Sanding Sponge is ideal for preparing freshly coated wood or metal surfaces prior to the next coat.Block sanding sponges are recommended for flat or slightly contoured surfaces. 3M SandBlaster coarse sanding sponges cut fast, last long and are clog resistant.