3M Full size sanding sponge is ideal for dry or wet sanding of wood, paint, metal, plastic and drywall. When finished, simply rinse and reuse. Conformable, flexible and convenient and available in medium grade. Soft foam sponge with sanding abrasive coating on 3-sides of block foam. Woodworking product designed for contour and flat sanding. 3 3/4" x 2 5/8" x 1".