3m Micro Flim 8 1/2 X 11″ (7)

Precision micron-graded aluminum oxide resin-bonded to a polyester film backing. For close tolerance finishing on metals and plastic surfaces. Nonloading for longer life and greater efficiency. Measure 8-1/2″ x 11″.Convenient Set of 7 (one of each grit: 180, 220, 320, 400, 500, 600, and 1200).