The 3M SandBlaster Sandpaper Sponge is ideal for removing old paint, varnish, and clear-coat finishes on wood and metal. Use this 3M sanding sponges to remove coatings prior to bare surface sanding. Block sponges are recommended for flat or slightly contoured surfaces, and coarse sandpaper sponges cut fast, last long, and resist clogging. Green in color, this sponge has 60-grit sandpaper. Use it to remove coatings prior to bare surface sanding Block 3m sanding sponges are recommended for flat or slightly contoured surfaces Coarse sandpaper sponges cut fast, last long, and resist clogging Color: Green Ideal for removing old paint, varnish, and clear-coat finishes on wood and metal This sponge has 60-grit sandpaper Dimensions: 3-3/4 in. x 2-1/2 in. x 1 in.