SIHOO Doro C300 Ergonomic Office Chair with Ultra Soft 3D Armrests, Dynamic Lumbar Support for Home Office Chair, Adjustable Backrest Desk Chair, Swivel Big and Tall Office Chair, Computer Chair Grey - A3-002

• 【New Design Ergonomic Chair】SIHOO Doro C300 ergonomic office chair combines the latest technology to give you continuous support in the neck, lumbar, leg and hand areas. Equipped with an adjustable headrest, adaptive lumbar support, 3D armrests, intelligent weight-sensing device, durable and silent chair wheels, flexible backrest, and breathable mesh fabric, this office chair offers long-lasting comfort even if you sit all day. 【Innovative Dynamic Tracking System】The backrest utilizes an innovative dynamic tracking system that automatically tracks the backrest to fit your back as you move your upper body, giving you full support at all times. In addition, the backrest of the home high back office chair has four adjustable heights and can move up and down by 2.36 inches, which is suitable for people of different heights. 【3D Coordinated Armrests and Adaptive Lumbar Support 】The office chair's three-dimensional armrests can be adjusted in three directions and synchronized when reclining, allowing you to relax your arms in any position. When you move your body while sitting on the SIHOO Doro C300 Computer Chair, the Adaptive Lumbar Support will automatically move with your body and fit your lumbar area, effectively relieving back pain and protecting your health. 【3-Position Tilt Adjustment】SIHOO Doro C300 can be tilted 110°, 120° and 130°, allowing you to relax and rest in comfort. In addition, this office chair features an intelligent weight-sensing device that adapts to the user's weight while ensuring an easy and balanced reclining experience. 【4-Stage Pneumatic Lifter and Safety Certification】SIHOO Doro C300 ergonomic office chair has 12 patents, passes the European Union's REACH and EN1335 standards, and has been certified by the German TUV for safety and quality. Our ergonomic office chair also meets the US SGS BIFMA standard and is equipped with an SGS-certified 4-stage pneumatic lift for added durability and safety. We promise to provide free product parts during the three-year warranty period from the date of purchase.