Description: 5/8-11 Threads Hook &Loop Rotary Backing Pad, hook and loop function for quick attach or replace pads to the backing plate, prevents pad shifting and spinning, yet allow for easy removal of abrasive disc without wearing out overall strength, and facilitates use and re-use of the disc for the full extent of its abrasive life. Made of high quality PU which is flexible , durableand environmentally friendly Excellent balance of performance , make sandingmore smooth and stable TAPERED EDGE EASY TO SAND Specification: Pad material: PLASTIC Diy supplies: Paint & Decorating Size:as you choose Bottom diameter: approx.50mm/1.96" or 70mm/2.75" Package Includes: 1 Piece Backing Pad Note: Please allow 1-3 mm error due to manual measurement. Color might be slightly different due to the color calibration of each individual monitor.