1-inch Sponge Polishing Pad for Jade and Marble Mini Polishing Pads with Free Backer

1. 1 set=8 pcs: 150#/300#/500#/1000#/2000#/3000#/6000#/10000#

2. Backer: 2.35mm/3mm

3. 1 inch=25mm

4. Wet Polishing, used for polishing marble, jade, agate, jadeite, and so on