Swivel Mesh Children Computer Upholstered Seat Adjustable Height Ergonomic Chair Height Adjustable Function: With the premium gas lift and adjusting lever, the kids task chair will smoothly lift up and down from 31.5" to 36". Thus, kids can sit with the most comfortable position. Adjustable height satisfies the needs of kids from 6 to 15 years old. Ergonomic Backrest and Armrests: Ergonomic curved backrest with back support fits well with kid's body curve, which is good for spine protection and fatigue relief. Meanwhile, the smooth armrests offer extra support for your hands to ensure further relaxation. Swivel Seat and Sit-Brake Wheels: The seat can swivel 360°, enabling kids to change directions for easy reach. 5 sit-brake wheels will auto-lock when the gravity is more than 55 lbs and auto-loose when kids get up. To ensure safety, kids can not move the chair when the wheels are locked. And the PU wheels won't damage the floor. Upholstered Nylon Mesh Chair: Upgraded nylon mesh fabric offers strong te