3M Natural Blend Pad 3500, Tan, 24" (Case of 5) Blend of natural (hogs hair) and synthetic fibers removes black marks and scuffs while polishing Powerful burnishing pad is effective on harder finishes and in high-traffic conditions Uniform coating throughout the floor pad delivers consistent performance over the life of the pad For use with electric, battery, and propane floor machines running at ultra-high speed (1500 rpm and above) Washable, reusable pad provides long-term economy