Best In USA PORTER-CABLE 7800 Drywall Sander 100 Grit Drywall Sanding Disc (5-Pack) Durable aluminum oxide grain for longer disc life and higher removal rates Premium foam pad for even material removal and long pad life For use with PORTER-CABLE drywall sander 8-7/8" Rotary Sanding Discs Includes five 100 grit sanding discs