Built to Last with 1.5 times ThicknessYoga ball chair is made from a heavy weight vinyl, which is approximately 1.5 times thicker than common brand. Thanks to thicken design, our exercise ball chair provides more stability and rigidity for the most technical moves. The burst resistant feature ensures safety and performance, as the ball will deflate slowly even if punctured, protecting the user from injury. Our Swiss balls can withstand 600 pounds of pressure.^ Perfect for any fitness levelWith two adjustable resistance bands, our stability and balance balls chair enhance poses like back bends, hip openers, and restorative poses for any fitness level. Our Yoga balls are a key part in helping to develop core strength. Our exercise ball fits perfectly for beginners, intermediate users, as well as advanced athletes.^ Multiple Uses You can incorporate the sitting ball in a variety of uses. Great as an alternative to a chair while working at your desk or watching television, as the relative instability of the balance ball forces your abdominal muscles to work harder. Besides, Birthing balls can be used at any point during pregnancy by alleviating discomfort in your spine, hips and lower back.^ Slip resistant& Easy to cleanOur premium PVC material provides an excellent slip resistance for your fitness routine. The innovative design helps it stay stable and maintains its posture while you change positions. Just normal soap and water or just water with the cleaning cloth (included). Made life much easier ^ Package Included1Office ball chair, 1Stability ring, 1Set of accessories, 2Resistance bands with carabiner, 1Quick inflation foot pump, 1Set of plugs&stopper. Our Fitness Ball ships deflated and come with a foot pump for easy inflation Our Fitness Ball ship deflated and comes with a foot pump for easy inflation