BodyTrends Fit Disc (Blue. Similar to the Swiss Ball)

The BodyTrends Fit Disc is an inflatable cushion for core stability exercises. It becomes more unstable as inflation increases. Diameter 13 inches. Color: Blue. Similar to the Swiss Ball, the BodyTrends Fit Disc provides an unstable surface for core muscle recruitment and a whole new range of challenging exercises. Makes a great sitting surface for work, home or the car. Sitting on the Fit Disc takes pressure off the spine, releases muscle tension, corrects posture, improves balance and strengthens the torso. Suitable for all ages. One side of the Fit Disc has massage nodules to increase circulation and provide massaging action. The other side is smooth. Increase the degree of exercise difficulty by using it nodule side up.