3M Pro-Pak Drywall Sanding Sheets are designed for sanding drywall joints, patching compounds and plaster. Made with sharp synthetic mineral for long-lasting performance. 120 grit Pre-cut 4.1875 in. x 11.25 in. and die-cut to fit most drywall tools. Features: Ideal for moderate sanding and smoothing of joint compounds Available in a range of grits for effective drywall sanding Cuts fast Heavy-duty paper backing resist tearing Resists clogging for longer life Water resistant sheet can be used wet or dry Intended for sanding drywall, plaster and spackling compounds Can be used for sanding wood, metal, plastic and painted surfaces Pre-cut sheet will fit most drywall sanding tools 120 grit Mineral color will not discolor the sanding surface Recommended for use with 3M personal safety products Package contents: 25 sanding sheets Size: 4-3/16 in. x 11-1/4 in.