Typhoon dry diamond polishing pads for concrete floorThese pads are designed for shaping and polishing soft and hard concrete floor. Dry use. They are very popular and the best resin concrete floor polishing pads on the market. They are longer lasting and produce a great finish without leaving scratches. With velcro back. And velcro color can be changed as requested.More longer lifeUse with all concrete grinders or polishersOne set including 30 ,50 , 100, 200, 400, 800, 1500, 3000 grit.Available sizes: 3",4"Thickness:10mmDry Use.Item No.SizeGrit No.Velcro ColorThicknessC100123 3"/76mm     30 Purple 10mmC100124  50Dark BlueC100125    100YellowC100126  200 OrangeC100127  400RedC100128  800Dark GreenC100130  1500 Light BlueC100131  3000Brown