3m™ Pro-Pak™ Drywall Sanding Sheets Are Designed For Sanding Drywall Joints, Patching Compounds And Plaster. Made With Sharp Synthetic Mineral For Long-Lasting Performance. Drywall Sanding Sheets Fit Most Drywall Sanding Tools. Made With Sharp Silicon Carbide Mineral For Long-Lasting Performance. Designed For Sanding Drywall Joints, Patching Compounds And Plaster.