Is that a giant super bouncy ball?
Almost a giant super bouncy ball… we have a solid urethane ball that resists warping, deflating, bursting, and becoming ineffective. You will not be able to find a ball like ours. You can use any ball, but to truly ride you need a solid ball. We searched for three years to find a suitable ball to ride on. We found solid urethane to be the best product, in form and function, compared to other materials. We do not use air filled ball becuase they warp and break over time. Although the price for urethane is quite high- it provides the best ball for you.