4" Alpha Ceramica EX Diamond Polishing Pad - Set of 5 pcs Five (5) pcs 4" Polishing Pads Hook and loop (velcro) back Maximum RPM 4000 Wet only - use with water One set of polishing pads that can produce a high quality shine on granite, engineered stone, quartz surfaces, marble (including hard to polish black and green), terrazzo and porcelain tile