This abrasive disc is made of heavy-duty aluminum oxide to allow everyday use. The conformable disc is designed to be stacked on a straight shaft tool or bench motor, or it can be used individually. Conformable disc can be used on its own or stacked on a straight shaft tool or bench motor. Aluminum-oxide construction can handle repeated use. 3M(TM) Scotch-Brite(TM) High-Strength Disc, 6in. x 1/2in., Medium is one of many Finishing Tools available through Office Depot. Made by 3M.