Balance Disc by Gaiam

Work your abs from almost any chair with a posture-improving inflatable Balance Disc. The Balance Disc engages your core muscles while sitting and can also be used for strengthening exercises in your chair or on the floor. By controlling the firmness of the cushion, you can adapt it to your fitness needs and sitting comfort. Does not include a pump. Strengthen your core and improve posture as you sit comfortably Use with a variety of strength and balance exercises Control the disc’s firmness to increase your workout challenge Measurement: 16″ diameter. Weight Capacity: 300 lbs. Compatibility: Cannot be used on chairs with painted/finished surfaces. Resources: Care, Setup, & Tips