Remind: The 5/8"-11 thread velcro backer/pad holder are with water feed hole, can be used for wet polishing.

This package:

46 Pieces of 4" Pad for granite marble concrete glass quartz travertine

 and 2 Pieces 4" Backer (5/8"-11 thread), 

the 46 Pads are: 

9 X Grit 50,

7 X Grit 100 200 400,

4 X Grit 800 1500 3000 10000.

Remind: velcro backer's max capacity is 5000RPM, please don't use it with high speed polisher/grinder.

- 3.2mm thickness

- recommend 3500 - 5000 rpm (grinder or polisher speed must be lower than 5000 RPM)

- wet or dry use (wet use recommended)