$50-60
Size: 140mm long, 56mm wide, 16mm high;
Grit number: 30#, 40#, 50#, 60#, 80#, 100#, 120#, 150#, 180#, 220#, 320#, 400#;
Sharp and long life, 6pcs 30# can polishing more than 20,000square meters granite slab;
Any further enquiry, pls contact Peter@ 0086-13799779178