SIT, PERCH, STAND! The Office PLUS Sit-Stand Wobble chair is the perfect seat for your standing desk. Supports your weight, takes the load off your legs and gives you a rest from standing by letting you perch. The best office stool for your stand-up desk or for those who can't be on their feet all day. This chair gives you the flexibility to sit, rest or stand throughout the work day. Continuous movement while sitting increases Secondary Focus. Working at your desk or on your computer or tablet are no longer sedentary activities. A patented anti-tip safety ring on the base prevents tip-overs and falls. Suggested for person height of 5'4" to 6'7" and desk/table height of 30" to 48”. Ages 14+.