Balance Stability Disc CushionOffering 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 33 cm -wide disc comes in handy at the gym, at home, or at the office.Harder WorkoutsWhether sitting, standing, kneeling, or otherwise bearing weight on it, the wobbly, 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.Great Sitting BuddyIn addition to maximizing workouts, the muscle-engaging balance disc cushion works well for long sitting sessions. It makes a great choice for anyone working all day in front of a computer or for little kids who have a tough time sitting still at a desk or the dinner table. The wobbly disc makes sitting a more active and interesting activity.