Item:6pcs Wet Professional Diamond Polishing Pads Quantity:6pcs/set Specification: Color:Grey Is Customized:Yes Texture:Resin Formulation Workable Thickness:3mm Diameter:4inch/100mm Diamond Grit:#30 Applicable Machine:Angle Grinder Applicable: Wet polishing granite marble ceramic artifical stone, etc Feature:1.3mm thick resin caking, high-quality diamond, scientific formula, high-grade polishing products; 2. Soft and flexible, suitable for polishing of different shapes; 3. A set of product, from rough grinding to fine grinding to polishing, to meet customers' different product needs; 4. Fast polishing speed, good effect, no scratch, smooth and fine surface layer; 5. The color of the ground material itself remains unchanged, with fast glazing, good brightness and no fading. 6. Professional quality,durable, to provide you with professional products with high cost performance; 7. The recommended speed is 2500rpm and the maximum speed is 4000rpm. 8. Need to add water when using.