A swivel chair is a type of chair with a rotatable seat, belonging to the category of office chairs or computer chairs. Its English name is "swivel chair". The structure of a swivel chair typically includes a headrest, a backrest, a seat, armrests, an air rod support, a rotating shaft, and a five-claw base with wheels. Swivel chairs are divided into semi-swivel chairs (rotating 90 degrees left and right) and full-swivel chairs (rotating 360 degrees) based on the rotation angle. Common types of swivel chairs include work chairs, staff chairs, mid-size chairs, and executive chairs, suitable for different office settings. The core function of a swivel chair relies on an air pressure rod to achieve lifting and lowering. Internal high-pressure nitrogen generates elastic force through the difference in piston cross-sectional area, supporting the weight of the human body and adjusting the height, which can be locked at any position.