【Ergonomic Office Chair】Are you looking for an ergonomic office chair? The Xmifer office chair offers 4 points of support (head/back/hips/elbow). It is easy to adjust the headrest and lumbar support to better concentrate on the work.And when the report design is finished. Once work is finished, the tilt function allows you to tilt the backrest back (90~120°) to 3 positions, so you can rest. 【90° Adjustable Armrest】Lift up armrest to push the office chair under the empty desk to save more space, or flip armrest to relax your elbow. The padded armrest is a perfect typing point at your desk. Xmifer always supports your home office life. 【Adjustable Lumbar Support】Unlike other office chairs, the Upgraded Ergonomic Office Chair can move the lumbar support up or down to provide adequate support and encourage good posture. 【Sit More Comfortable and Cooler】Mesh back and seat maintain air circulation for extra comfort. You won't feel tired and hot after sitting for 4-8 hours of work.L The 9.5CM thickness and wider seat keep you relaxed throughout a busy workday. 【Quality Office Chair for Sitting】Xmifer office chair has passed BIFMA & SGS.Our office chair can support up to 300LBS/136KG.10cm seat height adjustment meets different sizes and weight of adults and juniors. It is the ideal choice for you, your colleagues, your family and your friends. 【Easy to Assemble】Clear instructions and tools are well packaged to deliver to your home, you can finish setting up the chair in 15-20 minutes.And, start your comfortable home office.