3M 9" x 11" Wetordry Sandpaper 25Pk

Use wet or dry for sanding old finishes, fine feather edging plus surface work. It is a silicon carbide, closed coat product bonded with a waterproof resin.

400 Grit MFG# 99420NA  051144994205

600 Grit MFG# 99419NA   051144994199