The carbon claw recoil rx 7 7 inch speed ball has a slightly smaller diameter compared to the average size making it more suited to experienced boxers seeking to further their technique and skills the smaller size will help enhance hand eye coordination and rhythm as well as allow users to improve their power and strength the strong speed ball is made from leather and has a sewn in supa safe rubber bladder which has been designed to keep air loss at a minimum ensuring consistent feel and re