✌Have a comfortable and relaxing working day with our Adjustable Ergonomic Chair!✅Performance:★ Ergonomic backrest: Curved contours backrest can help keep your back supported, your spine remain lifted, and your body properly aligned, which provides optimal support for your back when sitting for prolonged periods of time.★ For different height needs: To raise the seat, remove your weight from the chair, then pull up on the control handle. To lower the seat, stay seated and pull up on the handle until you’re at the preferred height. ★ Rocking Style: 120° rocking mode is available. To let your chair tilt back, pull out the control handle. To stop it from rocking, pull in the control handle. ★ A tilt-tension knob underneath the seat makes it easier or harder to recline back in your chair, depending on which way you turn the knob. ★ Flip-up Armrests: The armrests can be flipped up, so that you can have better rest and is space saving.✅Specifications:Seat Height: 18.1"-22" (from seat to floor)Seat Width & Depth:(W)19.7" * (D)20.8"Backrest Height: 23.5"✅Package Contents:Mesh Chair*1 (installation required)Manual Instructions*1⚡Note: WHEN YOU RECEIVED THE PACKAGE, PLEASE CONFIRM THAT ALL THE PARTS ARE CONTAINED AND IN WELL CONDITION✌Warranty:If there were any quality problem with this office chair, we provide 1 year free replacement parts or refund warranty. [Adjustable Drafting Chairs] Our height adjustable comfy office chair features comfortable 90° flip-up armrests that allow your arms and shoulders to rest comfortably and can be flipped up to save space effectively when not in use,which is very suitable for standing desks, sitting desks and bars.This stool chair also features an adjustable footrest ring that can be easily adjusted to provide stable foot support, improving blood circulation and reducing strain on legs. [Ergonomic Design Chair]This ergonomic drafting chair combines a W-shaped contoured seat and a breathable mesh backrest to support your natural posture, protect your spine, and alleviate back pain. The 41"-49" height adjustment and customizable footrest ring work in tandem to reduce strain on your back and legs, promoting optimal ergonomic alignment [Breathable Mesh Seat]Features a large seat with soft, breathable mesh fabric and an ergonomic W-shaped contour. This design promotes constant airflow to keep you dry and effectively minimizes pressure points. Experience significantly reduced discomfort and stay cool and refreshed even during the longest drafting or office work sessions [Smooth Casters & Stable Base]This ergonomic drafting chair features a smooth 360° swivel and upgraded silent rubber casters. Easily rotate to engage with colleagues or reach your workspace. The quiet wheels ensure seamless movement across tile, wood, and carpet without noise or scratches. Combined with a sturdy 28" 5-star base, it guarantees stability at elevated heights [24-Month Free Parts] Typically, each drafting chair assembles easily in 30 minutes. Unhappy experience? Email us immediately, and the expert team will respond within 24 hours to ensure your satisfaction