ERGONOMIC DESIGN - Office chair is ergonomically design for comfy. The ergonomic office chair provides full-body support with 3D headrest and armrest, special adjustable lumbar support to ensure your waist is fully wrapped and comfortably supported BREATHABLE MESH - Ergonomic mesh office chair uses highly elastic breathable mesh fabric to provide a more comfortable and cooler sitting experience,this computer gaming chair is perfect for long hours of sitting MULTI-FUNCTION - Desk chair comfy supports height adjustment and 3-step 90-135° tilt locked with a retractable footrest, easily adjust for relaxation. The home office desk chairs uses silent PU wheels that can rotate 360° and move smoothly MULTIPURPOSE USE - The ergonomic office chairs whole dimensions: 27.6"W x 26.4"D x 51.2"H, support up to 350 lbs, suitable for man woman and everyone, prefect for home, office, gaming and conference room chairs PREMIUM SERVICE - Mesh Chair Includes clear assembly manual & tools