3M Natural Blend Tan Pad 3500 incorporates hog's hair and synthetic fibers in a construction that produces a high gloss on harder floor finishes while removing scuffs and marks. The open-textured non-woven pad resists loading and clogging. It is conformable, providing solid pad-to-floor contact. Resins and polishing particles are dispersed uniformly throughout the pad, delivering high-quality performance over the life of the pad. For use with corded-electric, battery-electric, or propane-powered ultra-high speed floor machines operating at 1500 rpm or greater. The pad is reversible.