XAO1235: Features: -Includes a pump and needle. -Balance disc. -Bumps on one side, raised nubs on the other. -Weight limit: 300 lbs. -Color: Blue. Product Type: -Balancer or stability ball. Color: -Blue. Material: -Plastic. Dimensions: Overall Height - Top to Bottom: -3". Overall Width - Side to Side: -13". Overall Depth - Front to Back: -13". Overall Product Weight: -3 lbs.