Features and Benefits All pads have our centering tee for fast and easy mounting eliminating wobbling while buffing Wool pad is made of high quality wool to deliver precision cutting power Foam pads are made of high quality foam to deliver precision polishing and finishing steps High quality design and engineering, made in the U.S.A. Universal backing plate Buffing kit for automotive paint includes one each of the following: 7502GT - heavy cutting 100% wool, 4 ply, 7.5" diameter x 1.25" pile pad with hook and loop backing and centering tool, an aggresive pad designed for any cutting application; 930GT - yellow 50 PPI grip contour foam polishing 9" diameter x 1.5" thick pad with hook and loop backing and centering tool, the coarsest grade of foam providing a light cut that works like magic; 920GT - black 80 PPI grip foam finishing 9" diameter x 1.5" thick pad with hook and loop backing and centering tool, the most popular foam pad that brings any finish to life; and the 1938 - 7" backing plate for all three pads. Buff And Shine