8 Pie Type Diamond Concrete floor polishing pads These 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 life Use with all concrete grinders or polishers One set including 30 ,50 , 100, 200, 400, 800, 1500, 3000 grit. Available sizes: 3" Thickness:10mm Dry Use. Item No. Size Grit No. Velcro Color Thickness C100350 3"/76mm 30 Orange  10mm C100351 50   Grey C100352 100   Black C100353 200   Blue C100354 400   Red C100355 800  White C100356 1500   Yellow C100357 3000   Dark Blue