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 53736, Drywall Sanding Sheets 9092DC-NA, 4.1875 in x 11 in, 2 Sheet Medium Grit, 7010383510
$1.90
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 14010 Dynafile Abrasive Belt Tool Versatility Kit
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
3M 31663, Cubitron II Net Disc 80+/180+/320+, includes 6 in discs and sheets, Job Pack, 7100251881, 100 Packs/Case 
