1. different sizes: 130, 150, 200mm 2. different grit: 40, 60, 80, 120 3. good for edging, bevelling machines 4. good polish 1) Type: 10S/ 9R (rubber wheel), X3000/ X5000 (cerium oxide wheel)2) Available size:cerium oxide wheel: 150*70*30, 150*70*40It is used for polishing the bottom edge of glassrubber wheel: 10S40/60/80/120 and 9R60/80/120130*60*35,150*70*30, 150*70*40, 150*22*15/20/25/30, 200* ...