3M Drywall sanding sheets are designed for sanding drywall joint compounds (light or regular), patching compounds, and plaster. It is made with aluminum oxide, a tough synthetic mineral that cuts cleanly and leaves a smooth finish.
3M 09504, Drywall Sanding Sheets 9091DC-NA, 4-3/16 in x 11-1/4 in, Fine grit, 7010341447, 5 per pack
$2.01
Factory Stock, 7-10 Day Leadtime, Priced Per Pack
3M Drywall Sheets are designed for sanding drywall joints, patching compounds and plaster. Made with sharp synthetic mineral for long-lasting performance. Pre-cut 4-3/16 in x 11-1/4 in and die-cut to fit most drywall sanding tools.

Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 05209, Hookit Sanding Block D/F, 70MM x 396MM, 7000028312
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Standard Abrasives 730174, Ceramic Side Wall Cartridge Roll, 3/4 in x 3 in x 1/4 in, 100, 7100102868 
