j/fit Inflatable Balance & Stability Disc: (LARGEST in Industry 26″) Large Yoga Wobble Cushion Trainer with Pump – Core Fitness & Workout Equipment Discs for Home – Office Chair, Ankle Strength Training & Dog or Pet Activity: Blue, 26-Inch

IMPROVES STABILITY AND CORE STRENGTH Improving your body's core is one of the keys to improved fitness and health. The j/fit Fit Disc is ideal for building core stability, strengthening your back and abdomen, increasing muscle tone, and aiding...