Ergonomic Mesh Office Chair: This fully-mesh office chair is designed with ergonomics in mind and offers multiple adjustments.The backrest adopts a bionic spinal curve design that fits the natural forward convex curve of the lumbar spine, providing even support for the lower back and reducing the pressure caused by the lumbar spine being suspended during prolonged sitting. Adjustable 2D Headrest & 3D Armrests: This ergonomic gaming chair with footrest features an adjustable headrest that can be raised or lowered by 2.7 inches and rotated 40°. The ergonomic high back office chair comes with adjustable armrests that can be moved up and down by 2.9 inches, forward and backward by 1.7 inches, and rotated left and right by 45°. It provides comfortable support for your head and elbows, accommodating various sitting positions. Super Breathable & High Back Mesh Chair: The comfortable computer chair with lumbar support, headrest, backrest support. The seat cushion are made from a spe