Description Diameter: 4inch/100mm; Inner Hole: 20mm; Segment Height: 27mm; Thickness: 1.0mm. Brand new and high-quality. The Diamond Cutting Grinding Disc is suitable for fast cutting grinding rounding stone marble granite and other stonemarble slabs and ceramic tile etc. Double sided high diamond exposure rate provides a faster and more aggressive cutting and Grinding. Vacuum Brazed Diamond tools working is much longer than electroplated diamond tools engineered for good balance, fast grinding,cutting and long working life. Colour:As Shown Material:Diamond Package Contents: 10 * Grinding Wheel Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.