ERGONOMIC DESIGN – Designed for prolonged sitting in comfort, the curve of the chair matches the body and spine for optimal support in key areas. Includes lumbar support base to assist with posture. COMFORTABLE SEAT – A wider, extra padded seat cushion is a cozy place to sit for longer periods of time. Double padded armrests hold your arms in a level position to type effectively. A flexible mesh backing keep the body cool even in the warmer months and adapts to bodyweight.ADJUSTABLE – Easily adjustable height and backrest can be customised to suit the user . Controlled by using the easy access levers under the base. 10cm Adjustment height either up or down with the gas lifting mechanism whilst the high backrest can be adjusted anywhere between 90 and 155° which makes this chair perfect for any situation.STRONG CONSTRUCTION – Designed to be robust and long lasting wide base and 5 castor wheels for stability. Reinforced joins and premium materials lets the chair handle up to 150kg of weight. Gas lift tested and certified to international safety standards. PRODUCT DETAILS – 5 Easy Glide Castor Wheels, Hassle Free assembly comes with clear instructions & all parts for 1 person to build.