Norton WallSand 9 in. Aluminum Oxide Hook and Loop Sanding Disc 120 Grit Medium 15 pk (Pack of 15)Tackle your aluminum, fiberglass, composite and wood sanding and finishing jobs while maximizing value with the A290 medium grit paper H&L disc. The hook and loop back holds the P graded aluminum oxide abrasive disc on your machine easily, so you can quickly take advantage of the fast cut rates and consisting finishing results. A No Fil water based stearate coating and an open coat design extend the disc life by minimizing loading. Get the flexibility