The Lolo Ball is an advanced hopping skill activity that is the perfect transition from the spring ball to the pogo stick! Simply balance on the platform that surrounds the ball and begin to bounce. Develops balance, gross-motor control and leg muscles. To ensure safety, use only in environments that are free of obstacles. Ball is 8-1/2" diameter, outer disk is 15" diameter and maximum recommended weight is 185 pounds. Ball and ring colors may vary. Comes deflated and the needle is not included. Before inflating the ball it is inserted half way into the plastic platform that is stood on. As the ball is inflated it locks itself into the platform.