Original Starfish Ball Chair, Yoga Ball Chair Exercise Ball Chair Ergonomic Design for Home Office Desk, Stability Ball & Balance Ball Seat Stay Active Stay Focused You may think it‘s impossible to stay active while sitting at a desk for hours. With our unique designed starfish, it’s not! This revolutionary yoga ball chair will change the way you sit by engages your core and leg muscles while your mind is still free to concentrate on the task at hand, leading to higher energy levels and increased productivity and focus on work or study. Free To Move No more restraints now, free to move as you wish. Upgraded from our previously well-received classic Starfish chair series, the new infinite360 Caster load-bearing system is Quiet and anti-skid, give you ample space to move around with maximum flexibility. all four wheels are equipped with locking mechanism in case you still need some stationary moment. (4 Fixed base still included after upgrade, choose freely as you wish!) Relief And Improve Posture Back start to go wiggly and posture get mushy?Stop slowly murdering your body by sitting still all day long. Our yoga ball chair uses its patented bionic ergonomic design to encourages proper posture, allows the spine to return to a natural state of balance, as well as provides much-needed relief throughout the back. Keep the Balance with Enovi Sedentary lifestyles like sitting still all day increase all causes of mortality, double the risk of cardiovascular diseases, diabetes, and obesity, and increase the risks of colon cancer, high blood pressure, osteoporosis, lipid disorders, depression and anxiety. Whenever you are looking for new lifestyle offers significant health benefits and mitigate health risks, or just want to try a healthier alternative to your current office chair, a quality flexible balance air seat recommended by fitness experts and physical therapists could make a big difference in your daily routine.Stay active, relieves fatigue and promotes proper posture, we are here to help you keep the balance.