PROFESSIONAL-GRADE FOAM keeps its shape for lasting use ANGLED SIDES are great for detailed sanding PREMIUM MINERAL GRITS for effective hand sanding SUITABLE FOR wet sanding or dry sanding SANDING SPONGE WILL NOT DISCOLOR THE SURFACE you are sanding CONFORMS to your surface for easy sanding RESISTS CLOGGING for lasting use INTENDED FOR USE ON most surfaces AVAILABLE IN A RANGE OF GRITS for a smooth finish GREAT FOR construction, woodworking, carpentry, and home improvement projects