The new Power Systems Wall Ball is designed to maximize workout performance while withstanding the toughest of exercise programs. Enjoy the results of the durable black vinyl shell and internally reinforced design as it absorbs high velocity impact while maintaining its' shape. Standard 14" diameter ensures consistent form as you practice, with ten weight options from 6 to 30 lbs. Black. Racks available, for up to eight balls and for up to sixteen balls; Features: One diameter helps with consistent form while training from lower to heavier balls. Soft, black vinyl shell with a moisture and scuff resistant textured surface to provide a confident grip. Internally reinforced design is durable and maintains shape while remaining soft to the touch. Black. 10 weights, from 6 to 30 lbs. 14" diameter.