Heavy-Duty Hand Sander For Cleaning And Polishing. Structural Foam And Stainless Wire Clips. For Drywall, Marine And Commercial Use. Lightweight. Structural Foam With Stainless Wire Clips. New Integral Molded Pad. Uses Dws Drywall Sheets Or 1/2 Sheet Of Sandpaper And 9" X 3.375" X 3".