Ergonomic Drafting Chair: The backrest conforms to the curve of the human back to reduce fatigue and promote better posture. Comes with lumbar support that adjusts up and down 3cm/1.2inch to accommodate people of different heights, designed to protect your spine and relieve back and spinal pain during long hours of work.The tall office chair will provide extra support for your back. Adjustable Soft Seat: Winrise ergonomice chair can be adjusted by 20cm/8 inches in height to meet different heights and needs. This computer chair with removable foot ring helps you move your feet frequently to reduce the pressure on the back of your legs and increase comfort. The 90° flip armrest design can save some space, suitable for standing desk, sitting desk, bar, living room, conference room, study room, office and other places. Comfortable Office Chair: Filled with high-density sponge, the 4-inch-thick streamlined cushion is soft and elastic enough to reduce the discomfort of sitting for a lon