This type of pads are General Grade. It's not the Premium Grade.
Diamond Wet Polishing Pads 7 Pieces (Grit 50#, 150#, 300#, 500#, 1000#, 2000#, 3000#).
The Material Contain Diamond Powder and Suitable for Granite, Marble Stone.
3 mm Thickness and Flexible Velcro Backed. Velcro Colour: Blue(50#), Yellow(150#), Orange(300#), Red(500#), Green(1000#), Light Blue(2000#), Black(3000#).
Maximum speed RPM 4000, Optimal RPM 2200.
3 Inch Diamond Wet Polishing Pads 7 Pieces (Grit 50#, 150#, 300#, 500#, 1000#, 2000#, 3000#).

Technical Details

Product Details

Package Dimensions
Width : 3.25 inch
Height : 2 inch
Length : 3.25 inch

Shipping Weight: 4 ounce (View shipping rates and policies)

ASIN : B01LXZPG33