【Quality Ergonomic Office Chairs】 Are you struggling with an uncomfortable office chair at home? Congratulations, you have found the most comfortable home office chair. This RYDESIGN ergonomic office chair features a unique backrest design that conforms to the natural curves of ergonomics. In addition, the ergonomic mesh office chair also has a back support to help you fix your sitting posture. Our computer desk chair is definitely your best choice. 【Adjustable Lumbar Support Office Chair】Our ergonomic office chairs come with adjustable lumbar support that adjusts up and down by 2.5 inches, allowing you to customise the support to your specific needs. Whether you need extra lumbar support or are looking for a more comfortable seating position, we can accommodate your needs and ensure that your spine maintains the correct curvature. 【Flip-up Armrests Ergonomic Desk Chair】Home office desk chairs with adjustable armrests. You can flip your arms up and place the mesh office chair under the table to save space. Home office chairs can be placed arbitrarily in relatively narrow areas. 【Comfortable & Breathable Mesh Chair】The mesh office chair features a 4-inch soft, high-density foam cushion that minimises pressure on your hips and tailbone, providing you with lasting comfort and support. The back of the chair is made of breathable mesh for better air circulation and to keep you cool and dry. 【90-120° Tilt Function】You can freely adjust the angle of the backrest, the office chair can be tilted up to 120 °, the backrest can be locked at 90 °, the height of the office chair can be adjusted (10 centimeters), suitable for different sizes of adults, teenagers and other people! 【Easy Installation and 2-Year Warranty】All ergonomic computer office chairs come with a 2-year warranty, so please email us directly, and we will provide you with an effective solution as soon as possible. With clear instructions and tools, It usually takes about 15 minutes to install. PU silent wheel rolls smoothly, with no harm to wooden flooring. Our office desk chair passed BIFMA quiz and 1136 kg static pressure quiz. 【Accessory Replacement】Please choose the right chair according to your height and weight, and if you have any questions, please consult the RYDESIGN team before purchasing. For any part or function issues, we will actively handle them for you. 【Comfortable Office Desk Chair】Office chairs can be adapted to different body shapes. Dimensions of the entire chair (including armrests): 24.4" wide × 20.7" depth × "36.2-41.7" high. Load capacity: 300 lbs. The backrest function allows you to tilt the backrest back (90~130°) or sit up straight. 【ANSI/BIFMA Compliant 】- This office chair has been tested and verified for furniture safety and meets the stringent performance requirements and safety standards associated with specific furniture products.