Diablo Assorted Triangle Sanding Sheet, Backing Type: Hook-and-Lock, Ceramic Grain Abrasive, 80, 120, 220 Grit, Grit Grade: Coarse, Fine, Ultra Fine, 3-1/8 in L, 3-1/8 in W, Includes: (4) 80 Grit, (4) 120 Grit, (4) 220 Grit Oscillating Triangle Sanding Sheets