3M Pro-Pad Sanding Sponge, 2.88-Inch by 4-Inch by .5-Inch, 54-Pack Pro-Pad 100-grit sanding sponge is highly conformable Flexible and convenient in use Ideal for dry or wet sanding of wood, paint, metal, plastic and drywall Its rinse and reusable flexible conformity is convenient for painters, cabinet makers and drywallers Measures 4 inches length by 2-7/8 inches width by 1/2 inches height