3M Contour Surface Sanding Sponge, 4.5-Inch by 5.5-Inch by .1875-Inch Ideal for sanding wood, paint, metal, plastic and drywall Extremely flexible, "softback" Rinse and reuse Medium grit 4-1/2" width x 5-1/2" length x 3/16" thick Rinse and reuse Use wet or dry Wood, paint, metal, plastic, drywall Project size sponges Medium thin