Brand New 3M 86019 Red Abrasive Polishing Pad: Trapezoid, 5 in Overall Lg, Diamond/Mineral, Red, 400 RPM Max Speed • Micro-replicated composite diamond abrasive structures consistently and rapidly smooth and level stone floor surfaces • Works on concrete, terrazzo, marble, and other stone floor types • Self break-in feature that allows for quick cutting • Part of the 3M™ Stone Floor Protection System • Applications: For Marble, Terrazzo, Limestone, Travertine and Concrete.