Norton WallSand 9 in. Aluminum Oxide Hook and Loop A290 Sanding Disc 150 Grit Fine 15 pk (Pack of 15)Get smooth and consistent finishes on fiberglass, composites, wood and aluminum, even in micro finishing applications, with an A290 fine grit paper H&L disc on your sander or grinder. This long lasting disc features a P graded aluminum oxide abrasive to deliver a fast, reliable cut rate and its open coat design and water based stearate, No Fil coating minimize loading so your finishes are consistently impressive. With convenient hook and loop mounting