18 inches when fully inflated, yellow. These deluxe inflatable exercise balls are made with a vinyl that is specially formulated to release air slowly if a sharp object like a pen or pencil accidentally punctures the ball. Non-slip surface is ribbed for extra security. “Mottled" color differentiates it from standard balls. Balls can support up to 600 pounds (275kg) and come in a polybag.
- Item #: 30-1851
