3M Production Resinite Gold Sheet, 150 Grit, 9 in x 11 in. A premium, aluminum oxide mineral, an improved paper backing, and total construction. Performance advantages: improved rate of cut, increased flexibility, increased abrasive life and uniform, consistent finish. Use for for rough featheredging. Could be used for final sanding of plastic filler and putty. 50 sheets per sleeve. 02546