Diecut 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.