Gator, 4 Pack, 5, 150 Grit, Aluminum Oxide Sanding Discs, Quality Red Resin Sanding Disc Is Designed Specifically For Power Tools, For Use On Wood, Metal, Drywall, Fiberglass Painted Surfaces, Fits 5 Backer Pads, The Stick On Adhesive Holds Securely Without Slipping So You Can Smooth Large Surfaces, Resin Bonded To Resist Heat Humidity For Longer Life, AntiClog Stearate Coating Reduces Particle Build Up, Keeping The High Performance Grain Exposed Longer