1. Diameter is 4 inch, 100mm, with velcro back
2.Material is high quality diamond powder, resin bond
3.Grit can be #50,#100,#200,#400,#800,#1500,#3000
4.Dry polishing effect is better
5.Using for marble, granite, quartz and other floor material polishing
| Material | diamond resin bond |
| Diameter | 100mm |