4 Pcs Set: 4" Inch Velcro Rubber Backer for diamond polishing pad granite concrete

Description

This package includes: 4 Pieces of 4" Rubber backer/pad holder for 4" dimaond polishing pad. The backers are semi-regid. (5/8" Thread arbor). Remind: Rubber backer's max capacity is 5000RPM. Please don't use it with high speed grinder/polisher.