【Ergonomics to Relieve Stress】 Ergonomic office chair fits the natural form of the human body with curved seven-layer high backrest and lumbar support, suitable for all-day and long-term use, releasing pressure on neck, waist and back. 【Flexible Adjustable Design】 Pneumatic adjustable height swivel seat with flexible control and convenient operation. The backrest can rock back and forth between 90-120 degrees, the seat can rotate 360 degrees and the casters can roll smoothly. The swing and tilt of the seat can be controlled freely and comfortably by turning the controller. Pneumatic adjustment handles can adjust the seat to the desired height. 【Strong and Thick Material】 The executive chair has thickened skeleton and soft, elastic and easy-to-maintain PU leather. Especially double thicker and softer backrest, seat with built-in spring cushion and five-legged solid base with durable caster allows, make the product more stable and supportive. 【Fits Modern Workspace】 The executive office chair is very suitable for modern office no matter in terms of function or style. Soft leather and ergonomic design reduce long-term work pressure on the body, including buttocks, arms and legs. The black frame is matched with the dark leather upholstered backrest and seat to create a good visual effect, which is the representative style of modern office. 【Large Volume and High Capacity】 Overall Adjustment Height: 46"-49.5"H; Seat Size: 21"W x 21.7"D x 18"-21.5"H; Back Size: 21"W x 28"H; Assembly instructions included. Higher backrests and larger seats provide a wrap-around experience. Maximum weight capacity: 350lbs. Don't worry about the capacity of the chair, feel free to use and enjoy.