Our height-adjustable desk chair will grow with your little one(6-15 years old). The premium gas lift system and an adjustment lever allow the chair to easily lift up and down. Ergonomic backrest helps kids to develop a good sitting posture. Smooth armrests and elastic mesh seats add more sitting comfort. The breathable nylon mesh fabric ensures heat dissipation and excellent durability. Besides, the 360° swivel seat ensures easy changing direction. 5 flexible wheels allow for easy movement. The sit-brake wheels will automatically lock when the pressure is over 25kg and automatically lose when kids stand up. Bullet Point: Height Adjustable Function: The kid's task chair will smoothly lift up and down from 80-92cm with the premium gas lift and adjusting lever. Thus, kids can sit in the most comfortable position. Adjustable height satisfies the needs of kids from 6 to 15 years old. Ergonomic Backrest and Armrests: An ergonomic curved backrest with back support fits well with the kid's body curve, which is good for spine protection and relief of fatigue. 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 25kg and auto-loose when kids get up. Kids can not move the chair when the wheels are locked to ensure safety. And the PU wheels won't damage the floor. Upholstered Nylon Mesh Chair: Upgraded nylon mesh fabric offers strong tension and long service life. The elastic and skin-friendly mesh seat guarantees kids' sitting comfort. Additionally, the premium PP support base of the seat ensures sturdiness and durability, allowing the chair to accompany your kids to grow for years. Simple Assembly and Versatile Use: A detailed user manual and all needed accessories make it easy to assemble the desk chair. The chair dimension is 53 x 47.5 x 80-92cm (L x W x H). Once assembled, it can be widely used in the dorm, kid's bedroom or study room. Features: 80-92cm height adjustable design is suitable for kids of different ages(6-8 years old, 9-12 years old, 13-15 years old) Curved backrest, side armrests and comfortable seat to support your back, waist, arms and hip 360-degree swivel seat for kids to change direction without moving the chair 5 sit-brake wheels can be locked under 25kg of pressure Breathable mesh fabric ensures air ventilation and heat dissipation High-quality PP frame for long-lasting service life More details of the chair: rounded corners and cute colours Great for the dorm, kid's bedroom or study room Easy to assemble with a clear user manual Specifications: Colour: Blue/Pink/Purple Material: Nylon Mesh, PP Product Dimensions: 53 x 47.5 x 80-92cm (L x W x H) Net Weight: 6.5kg Installation guide Package Includes: 1 x Kids’ Chair Box Qty： 1(May vary by batch)