3M Melamine Floor Pad 17" 43cm Ideal for modern micro-porous floor surfaces such as ceramic, terracotta, marble and concrete. Cleans up to 1000m? for single disc cleaning machines and 10,000m? for scrubber driers. Ideal for modern micro-porous floor surfaces such as ceramic, terracotta, marble and concrete. Environmentally preferable - no cleaning additives or chemicals required. Specially designed for use on stone, concrete, VCT, marble and other porous floor surfaces, this highly effective pad makes light work of ingrained dirt, and unsightly scuff marks. It cleans most dirt and marks with water alone. Specifications Center Hole Yes Center Hole Diameter (Metric) 8.5 cm Colour Grey/White, Grey/White Diameter (Metric) 430 mm Machine Speed 1200-3000 RPM Material Non-Woven Polyester Fibre Product Type Buffing Pads, Burnishing Pads Recommended Surfaces Ceramic, Marble, Micro-porous surfaces, Polished Concr