TOPCHANCES High Back Office Chair, Ergonomic Desk Chair with Armrest and Adjustable Lumbar Support, Black

【Unique Adaptive Lumbar Support】TOPCHANCES Office Chair with Lumbar Support automatically follows the movement of the lower back, providing strong lumbar support throughout the day, can help relieves back pain. 【Multifunctional Adjustment】The backrest of the ergonomic office chair can be reclined and locked within a range of 96°-106°-116°. The angle and height adjustable headrest provides the most comfortable position for your neck. 【4D adjustable armrests】Seat lifts up and down and moves back and forth, plus 4D adjustable armrests for the ultimate in customized comfort in the office! Adjustable ergonomic chair is suitable for people about 5'3" to 6'3". Loading Capacity up to 300 Ibs. 【Breathable Back Mesh】The Breathable Back Mesh to keep good air circulation in your back, perfect for longtime sitting.7cm high high-density sponge cushion seat for long sitting without collapse.