Curvedback Budffing Pads features: 1.Material : German sponge 2.Application : Polishing for Car 3.Dished in loop backing for easy self centering 4.High quality plastic backing can restand the pressure from the polisher to extend the sponge life 5.The foam increase the friction with the paint , prevent pad skipping and reduces heat build up while buffing . 6.The hard reinforced plastic fits securely in peace and gives the feel of a stronger hold.