This Mesh Task Chair comes with an open breathable mesh seat and back that will keep you cool and comfortable during extended periods of work. It has 3D multi-direction armrests that are comfortable and versatile and can be adjusted to suit your personal preferences. The synchro-tilt, push-button, mechanism moves the back and seat in unison at a 2:1 ratio and locks in any position throughout the tilt range. It also has a built-in seat slider, that allows you to adjust the depth of the seat. The self-adjusting tilt tension allows you to customize the optimal angle at which you sit. The pneumatic adjustable gas lift allows for easy seat height adjustment, to help you find the personalized sitting style that suits you and your work environment. The large 27’’ black nylon base provides added stability to the chair. The hooded double wheel casters make it easy to move and shift directions and shift directions and the headrests provides addItional comfort.