SIZE - 1/8 inch (3mm) . 7/8 inch diameter, 1/2 inch thicknessABRASIVE BUFFING POLISHING WHEEL SET-- Brown: 80 Grit,Green:150 Grit,Red:240 Grit,Black:300 Grit, 4 Colors, 10 pieces for each color, totally 40 piecesMainly suitable for removing burrs, rust, dust and removing the oxide layer.Widely used in -electronic equipment, jewelry and other industrieswhich can improve quality of metal stone material, and it is an important part of the machining process.It is an efficient polishing of metal and non-metallic materials in small area of rust deburring and surface polishing.Color: brown+green+red+blackMaterial: NylonBrush diameter: 25 mm/ 1 inchLength: 46 mm/ 18 inchQuantity: 40 piecesPackage Contents:10 x Red Abrasive Buffing Wheels10 x Brown Abrasive Buffing Wheels10 x Black Abrasive Buffing Wheels10 x Green Abrasive Buffing WheelsOnly the above package content, other products are not included.Note: Light 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.