Features： Humanized Design Office Chair: ♡Ventilated mesh back/ thicken high-density elastic cushion; ♡Waterfall seat design eliminates leg fatigue; ♡Ergonomic back design with lumbar support. ♡TTY Store's gaming chairs conform to the shape of your back, offer much-needed lumbar and mid-back support, prevent slouching and maintain proper spinal alignment, keeping you comfortable. ♡ The comfortable cushion will distribute your weight evenly as you sit, effectively reduces leg pressure, will not sink because of your weight in a short time. ♡Make sure to sit on a supported chair or will develop problems like numbness and herniated discs. Practical Computer Office Chair: ♡360 rotation caster wheels; ♡Explosion-proof chassis/ strong metal base; ♡Adjustable tilt tension/ pneumatic gas lift seat height adjustment. Better Paired with Your Desk. ♡ Pull the lever and adjust the height that makes sure your foot touch the floor in easy rather than dangling. ♡ Did the armrests hinder you from sliding under the table? So the flip-up arms are more practical: raise the armrest up to start playing the guitar; Let the armrests return to the level and start working hard. DIMENSION (TOLERANCE±1"): Size： 27.3 x 28 x 44.5 inches Overall Height: 44.5- 47.6Inches Backrest: 27.3(W)*26.8 (H) Inches Seat Width: 27.3 Inches