40" Mesh Ergonomic Office Chair with Lumbar Support, Comfy Computer Desk Chair with Flip Armrest, Office Chair with Wheels for Home Study Room Office, White & Black

【Ergonomic Back & Lumbar Support】Designed with a high-density double mesh backrest and tailored lumbar support, this office chair perfectly contours to your spine's natural curve. It effectively reduces back pain and provides sustained comfort during long hours of sitting. 【Saving Space】Equipped with practical flip-up armrests, this chair can be easily tucked under any desk when not in use. Its compact design makes it ideal for small spaces like home offices, study rooms, or cozy apartments. 【Breathable All-Day Comfort】Enjoy a cool and comfortable seating experience thanks to the thick padded elastic sponge seat and breathable mesh backrest. The chair also tilts from 90° to 120°, offering flexible positions for work or quick relaxation. 【Smooth Height Adjustment & Mobility】Customize your seating position with pneumatic height adjustment ranging from 18.11" to 21.06". Paired with smooth-rolling wheels, this chair lets you move freely and maintain optimal posture throughout the day. 【Safe & Easy Assembly】Built with strong nylon and metal materials, this chair safely supports up to 350 lbs. Assembly is quick and hassle-free—follow the clear instructions, and you’ll have your chair ready in just 15 minutes.