Offering exceptional versatility, this Balance Stability Disc Cushion brings an extra level of challenge to strength-training workouts, including yoga, Pilates, and other everyday fitness routines. The wide disc comes in handy at the gym, at home, or at the office. Harder Workouts Whether sitting, standing, kneeling, or otherwise bearing weight on it, unstable disc quickly engages core muscles in an attempt for users to regain balance, which can help improve ab strength, overall stability, body posture, and muscle tone. Use the durable disc for a variety of exercises, including standing balance pose, plank, squats, lunges, bridge pose, and more.