4" flexible polishing backer pad: 1) High quality backer pad 2) convex for conncet the polishing pads

4" flexible polishing backer pad:

Item	4"flexible polishing backer pad
Size	4"
Material	Rubber
Thread Material	Copper
Arbor	5/8'-11/ M14
Application	For connceting with the polishing pads

The best quality and price from "SUNIVER TOOL"