ROYUMI Ergonomic Office Chair for Adults, Medicine Ball Chair Pilates Ball with Stability Base, Birthing Ball Chair for Pregnancy/Middle School

Using our ball chair can improve your sitting posture, and helps build core muscles, exercise and stretch during your break to get rid of your fatigue and relieve stress, which leads to increased energy levels and effective productivity and focus at work, ergonomic ball chair is an amazing replacement for a chair at home or work.Specification:- Material: ABS ＆ PE Chair ＋ PVC Ball- W x H: 53 cm (20 7/8") × 79 cm (31 1/8")- Load Bearing: 160 kg (350 lbs)- Ball Diameter: 55 cm (21 5/8")Features:- Ergonomic design, improves sitting posture- Yoga ball can be dismantled for separate use- Easily stores under your desk- Improved flexibility, strengthen the pelvis to help birthing- Strengthen your core muscles, reduce lower back pain- Birthing ball is a great gift for every mum during pregnancyPackage Contents:1 × Yoga Ball1 × Ball Chair Base1 × Ball Chair Back1 × Air PumpNote:- There may be an error of 1-3 mm due to manual measurement.- There may be chromatic aberration due to the difference between the recording lamp and the display. Please refer to the actual product.Quality Service:- When you encounter any problems with our products, please feel free to contact us, and we will try our best to solve them for you.

• ☑️【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)