VELOCITY pads are made of reticulated (open cell) polyester foam for strength and airflow for velocity of the New Big Throw Polishers. VELOCTIY pad features a tapered edge design for balance, durability and better surface contact for the force of the New Big Throw Polishers. Features Loop Backing. Speedily attacahes to Hook Backing Plate #69-085 or #69-086 (sold separately).