Material: diamond powderDiameter:100mm(4")Inner diameter: 16mmThickness: 3mmGrits: 50, 100, 300, 500, 800, 1000, 1500, 2000, 3000Colour: graylapping and polishing, has the advantages of strong grinding force, high wear polishing effect is goodMainly used for marble, granite floor renovation projectPackage include:1 x 50 Girt Polishing Pad1 x 100 Girt Polishing Pad1 x 300 Girt Polishing Pad1 x 500 Girt Polishing Pad1 x 800 Girt Polishing Pad1 x 1000 Girt Polishing Pad1 x 1500 Girt Polishing Pad1 x 2500 Girt Polishing Pad1 x 3000 Girt Polishing Pad1 x Black yellow suckerNote: Random color, don't accept the specified color.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.