The PANTHER SERIES Speedball is a small, 6-inch ball that requires skilled hand-eye coordination to maintain rhythm and continuity. It is made of the latest genuine leather hide materials and features a 6-panel machine-stitched design with a super safe rubber inflatable bladder that significantly reduces air loss. The internal rubber bladder is not sewn into the speedball, allowing for easy replacement if damaged. The hanging loop, although small, is an important feature as it needs to be durable but not too bulky to avoid causing friction or slowing down the pace of the ball in motion.