Tackle your aluminum, fiberglass, composite and wood sanding and finishing jobs while maximizing value with the A290 medium grit paper hookandloop disc The hookandloop back holds the Pgraded aluminum oxide abrasive disc on your machine easily, so you can quickly take advantage of the fast cut rates and consisting finishing results A nofil waterbased stearate coating and an open coat design extend the disc life by minimizing loading Get the flexibility you need without sacrificing tear strength thanks to fiber reinforcing in the latexsaturated Cweight backing