Gator, 3 Pack, 6", 150 Grit Aluminum Oxide Sanding Discs, Made Of Heavy Duty Sandpaper, Resin Bonded For Power Tool Sanding & Resists Heat & Humidity For Longer Life, Use On Wood, Metal, Drywall, Fiberglass & Painted Surfaces, Fits 6" Backer Pads & 6" Stationary Belt/Disc Sanders, Stick On Adhesive Holds Securely Without Slipping So You Can Smooth Large Surfaces, Anti-Clog Stearate Coating Reduces Particle Build Up, Keeping The High Performance Grain Exposed Longer, Grain Exposed Longer.