SIT, PERCH, STAND! 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. For those who canâ€™t be on their feet all day, the Office PLUS Sit-Stand Chair gives you the flexibility to rest by letting you perch and taking the load off your legs. This chair will help improve posture and strengthen the bodyâ€™s core throughout the work day. Adjustable height and gently-rounded base lets you sit comfortably but keeps your body moving so your mind stays focused and on task. It has a gently rounded bottom to encourage active sitting and increases secondary focus. Seating height adjusted with 360Â° Actuator Ring to between 21.5â€ť and 32â€ť. Great way to keep your body moving while your body stays focused and on task. A patented anti-roll safety ring on the gently-rounded base prevents tip-overs and falls. Antimicrobial protection. Lifetime warranty. Plastic Parts Made in USA. Assembles easily in 5 easy steps and is made of durable, recyclable plastic and a steel piston and base. Suggested height 5'4â€ť to 6'7â€ť and a desk/table height of 30â€ť to 48â€ť Maximum weight is 350 lbs. Check out the Kobe Wobble Chairs for all ages and sizes up to Adult. This chair is black in Fabric or in leather-like materials.