About this item SwivelBlue silent swivel office chair,the new heavy-duty metal base and 360-degree rotatable nylon smooth rolling casters can be easily moved to other places,providing us with great stability and mobility when using the office chair,to a certain extent to avoid scratching the floor,but also do not have to worry about disturbing others to rest. Soft comfort experience Mesh desk chair,ergonomically designed,mesh back panel allows air,body heat and water vapor to pass through,away from the heat and moisture build-up close to the body.It can provide good lumbar support to make you feel comfortable for long time use.Thicker and softer breathable seat cushion brings you maximum comfort and you won't feel tired after sitting for a long time. Ergonomic designThis adjustable office chair is perfectly ergonomic.desk chair includes lumbar support and height and tilt adjustable features that allow you to tilt the backrest back or sit up straight.Adjustable seat tilt angle and adjus