Ergonomic back and lumbar support guide kids into a proper sitting posture while they read, study, or work at a desk. The chair height adjusts from 31.5 to 36 in overall with a 16-21-in seat height, so it can match different desks and growing children. A 17.5 x 16 in upholstered seat with detachable cushion and mesh fabric helps distribute weight while allowing airflow to reduce heat buildup. A 360-degree swivel seat and 5 rolling casters let kids turn and move easily as they work, and the sturdy frame supports up to 330 lbs.