office desk chair ergonomic with headrest, adjustable armrests, seat, and lumbar support, mesh computer task chair, high back executive swivel chair, black hylone <br><b>hylone is committed to develop an efficient & healthy lifestyle for you.</b><br><br>have you get in trouble with these problems in a marathon workday?<br>❎cervical from a chair without headrest?<br>❎herniated disc from a chair without lumbar support?<br>❎numbness from a chair with stiff and thin seat?<br><br><b>✌have a comfortable and relaxing working day with our fully-adjustable office chair!</b><br><br><b>✅performance:</b><br>ergonomic backrest: curved contours backrest can help keep your back supported, your spine remain lifted, and your body properly aligned<br>for different height needs: to raise the seat, remove your weight from the chair, then pull up on the control handle(a). to lower the seat, stay seated and pull up on the handle until you’re at the preferred height. <br>tilt and lock: this office chair can recline from 90° to 130°. to let your chair tilt back, pull up the control handle (b). you can lock to different recline angles as you need by pulling down the handle. <br><br><b>✅features:</b><br>built-in headrest: the headrest fits the neck curve, great for relaxing during your busy working days.<br>adjustable armrests: the armrests can be adjusted up and down to meet different needs to a comfortable position.<br>adjustable lumbar support: the butterfly shaped lumbar gives extra support for your lower waist and keeps your body properly posture<br><br><b>✅specifications:</b><br>capacity: 285lbs<br>seat height: 17.9"-21.9" (from seat to floor)<br>seat width & depth:(w)20.1" * (d)19.7"<br>backrest height: 23.6"<br><br><b>⚡note:</b><br>when you received the package, please confirm that all the parts are contained and in well condition<br><br><b>✌warranty:</b><br>if there were any quality problem with this office chair, we provide 1 year free replacement parts or refund warranty.