This 5" white pad is an 800 grit diamond-impregnated floor pad used for deep cleaning and removal of heavy scratches and stains from polished concrete, terrazzo, natural stone and other floor types. Leaves a clean, smooth matte gloss surface well-prepared for the next step. Made of 100% recycled polyester impregnated with billions of microscopic diamonds. Use with oscillating or rotary machines of up to 3,000 rpm