This diamond polishing pad is mainly used for grinding and polishing marble floor, granite floor and concrete floor. This product is suitable for use with water grinding machine, from coarse to fine and then to polish. In the grinding stage, water is needed for operation, and when it is close to the polishing stage, there is no need for too much water. Features: - Made of quality diamond and resin powder materials, more durable. - Strong grinding force and smoothness. - In the grinding stage, water is needed for operation. - No color left on stone after grinding and polishing. - Suitable for use with water grinding machine. - Perfect for granite, concrete, marble, cement, etc. - 7 Kinds of Granulaity Available: 50/100/200/400/800/1500/3000 (Optional) Specifications: Material: Diamond+Resin Powder Color: As Shown Grit: 50/100/200/400/800/1500/3000 (Optional) Item Size: Approx. 10010010mm / 3.943.940.39in Item Weight: Approx. 100g / 3.53oz Package Size: Approx. 10010020mm /