This computer chair is ergonomically designed to fit your body's curves and keep you in a good sitting position. The computer chair headrest is adjustable in height and angle to suit different needs. The bottom of the seat is equipped with retractable padded footrests that add to the overall comfort of the chair. The backrest of the computer chair is designed with porous mesh to ensure breathability, and the backrest can be tilted backward from 90 to 135 degrees, within which the tilt angle can be locked at any time. In addition, the soft lumbar support pillow helps relieve pressure on the lumbar muscles and relaxes the lower back. The seat cushion of the computer chair is made of high-quality foam and fabric, which is both supportive and comfortable and prevents excessive pressure on the pelvis. The armrests are padded to help relax the shoulders and arms. This computer chair comes with smooth-moving universal casters that allow you to move the chair effortlessly. Five sturdy bases enhance the stability of the chair. Maximum weight capacity is 275 lbs. The computer chair comes with complete parts and a detailed installation manual for easy installation