Racingreat Office Chair, Desk Chair with Adjustable Headrest, Ergonomic Computer Chair with Adjustable Armrests and Lumbar Support for Home Office

[Ergonomic design] With its ergonomic S-shaped headrest, backrest and lumbar support, the rattantree computer chair adapts perfectly to the contours of your body and offers optimal back comfort. It helps you reduce fatigue and stay productive throughout the day.
[Multi-adjustable functions] 5 intuitive adjustment functions allow you to find the most comfortable sitting position and relax for long hours. Adjustable headrest, armrests, lumbar support, seat height and rocker mode give you a customised seating experience.
[Comfortable and durable] The surface of the backrest and cushion is made of high-quality polyester mesh, which is highly elastic, wear-resistant and breathable. the seat cushion is padded with thick, high-density sponge, which is soft and durable. The nylon wheels turn freely through 360 degrees and glide quietly over any type of floor.
[Safe and stable] SGS grade 2 certified gas lift for added safety and stability. The sturdy base and smooth nylon wheels offer excellent stability and mobility. It has also passed a push test of 102 kg and a static pressure test of 950 kg.
[Easy assembly] The detailed instruction manual and all necessary parts are included in the package. You can easily assemble this office chair by following the steps in the instructions without any additional tools. It is easy to set up and can be done by one person in just 20 minute