Die Cut To Fit Most Drywall Sanding Tools. Designed For Sanding Drywall Joints, Patching Compounds And Plaster To A Fine Finish. Also Used On Wood, Metal, Plastic And Painted Surfaces. Sharp Silicon Carbide Abrasive Lasts Long, Cuts Fast. Open-Mesh Cloth Backing Reduces Loading And Allows Use Of Both Sides. Rinse To Reuse. Packaging Strong Enough To Use As Storage Container For Unused Sheets.