Ergonomic Anti-Burst Yoga Ball Office Chair with Back & Wheels for Heavy People/Pregnancy - Strength Posture Birthing Ball, Comfortable Seat

- Material: ABS & PE Chair + PVC Ball- Dimensions: 53 cm (20 7/8) x 79 cm (31 1/8)- Weight Capacity: 160 kg (350 lbs)- Ball Diameter: 55 cm (21 5/8)Key Features:- Ergonomic design promotes proper sitting posture- Detachable yoga ball for separate use- Conveniently stores under your desk- Enhances flexibility and strengthens pelvis muscles- Core muscle strengthening to alleviate lower back pain- Ideal gift for expecting mothers for birthing exercisesPackage Includes:1 x Yoga Ball1 x Ball Chair Base1 x Ball Chair Back1 x Air PumpPlease Note:- Manual measurements may have a slight error of 1-3 mm- Possible chromatic aberration due to lighting and display differences

• 【Improves Posture】Balance ball chair can provide a comfortable dynamic sitting experience, combining both comfort and ergonomic back support, soothe pains that come from sitting for long periods of time, relieve your back pain.
• 【Healthy Exercise Ball Chair】Stability ball chair encourage consistent muscle contraction, stimulates blood flow, strengthen your core muscles, improve your stability and balance. This product is perfect during pregnancy and labor-time too.
• 【Durable Materials】The yoga ball chair base frame made of high quality ABS and environmentally friendly PE, sturdy and stable. The sphere is made of thick PVC material, honeycomb structure, non-toxic and anti-burst, bear loads up to 160 kg (350 lbs).
• 【Easily Installed ＆ Removable】Installation is very simple. Simply fix the seat back to the base and attach the 4 wheels, then inflate the ball with the included inflation pump and attach it to the chair. Pilates ball and base are not connected and can be removed for ball only workouts.
• 【Inflation Instructions】It may be necessary to re-inflate the ball after initial inflation to allow the ball’s material to stretch to its final size. Inflate ball with air, let stand for 24 hours, deflate 50% then fill again to 55cm height. (Watch out for over-inflation)