Teetering position naturally force your core for a stronger and healthier back 40 cm to 60 cm adjustable height suitable for different occasions and ages Wide application for office, school, reception center or home Comfortable cushion provide a pleasant sitting experience Anti-skid silicon gel base with high stability without move Wobble and wriggle add more fun to the boring sitting Durable PP material for long-lasting Service Features: Does your kid have the problem of fidgeting on the chair and can’t focus on his or her work? Then you can’t miss this wobble stool. The special wobble stool provides kids with more fun, and transforms boring and sedentary sitting into dynamic activity. Kids can teeter, totter, jiggle and sway all day on the chair while having their works done. Also, the flexible sitting can release fatigue and engage the core naturally for the right sitting position. Both cushion and the bottom are made of soft and non-skid silicon gel, which strikes the perfect balance between a comfortable sitting experience and high stability.