Yaheetech Ergonomic Office Chair Desk Chair High Back Mesh Computer Chair Study Chair with Lumbar Support Adjustable Armrest, Backrest and Headrest for Home Office Working Black - YT-00123231

• 【Large Cushioned Seat & Mesh Back】With its generous 20.5"(W) x 21"(D) seat and high-elastic foam cushion, this computer desk chair provides adequate cushioned support and relieves fatigue after extended sitting. Plus, the breathable mesh back lets air, body heat, and moisture to freely pass through, keeping you naturally cool. 【Adjustable Head Pillow & 2D Armrests】The home office chair's headrest can be easily raised and lowered by 8cm/3.1'' in accordance with your sitting postures. With up to 45° of angle adjustment, you can find the perfect angle while working at your desk or taking a breather and kicking back. More, the armrests can be adjusted vertically to a height of 7cm/2.8'' to suit your needs. 【Desk Chair with Adjustable Lumbar Cushion】Both the height and depth of the lumbar pillow are adjustable, ensuring that the backrest conforms to the natural curvature of your spine. To take your comfort to the next level, the lumbar support of this executive chair is well padded with 3cm thick high-elastic foam. 【Designed for Different Sitting Positions】Whether you like to sit upright for keyboarding or lean back and relax during a break, the backrest can be reclined and locked at any position between 90-135 degrees to meet your preference. The ergonomic chair's seat height can be easily shifted between 17.7 and 21.3 inches for a custom fit. 【30-minute Setup & Selected Materials】All the necessary parts, hardware and easy-to-follow instructions are included in the package for simple 6-step setup within 30 minutes. This ergonomic computer chair is built of plastic & mesh back, foam-padded seat, SGS-certified Class 3 pneumatic cylinder and nylon base & wheels. Capable of holding up to 136kg/300lb.