Ergonomic Mesh Office Chair

【Ergonomic Design】 POWERSTONE office chair has 2" adjustable back support, 2.5" up and down adjustable armrest height, and elastic padded thickened and breathable cushion to provide you with a perfect sitting experience. The unique design is suitable for a variety of workplaces such as home, office, conference room and reception room. 【Dimensions】 POWERSTONE office chair is retractable, cushion to floor height 17"-21.5", cushion width 19", cushion depth 17.5", armrests to floor height 28.5"- 34.5", armrest width 10", five-star foot diameter 27.5", backrest height 24"-26.5", backrest width 19.5". 【3D Lumbar Support】 POWERSTONE office chair backrest can be adjusted up and down by 2" and has strong multi lumbar support, 12°-23° adjustable tilt angle of the backrest can relieve spinal pressure and back pain. This is especially important for people who sit for long periods of time in the office or at home, as it finds the right backrest height for you and promotes good sitting posture. 【CO