CoolHut Ergonomic Office Chair Desk Chair High Back Computer Chair with Lumbar Support, 300lbs, Black (Upgraded Sponge Cushion)

Feature:  [Adjustable Office Chair]-This high back office chair featured with  adjustable armrests. It can be adjusted fore and aft, left and right, up   and down, which is suitable for standing desks, sitting desks,bars etc.In addition to that, our headrests are also adjustable to cater to  your needs.  [Ergonomic office chair]-This ergonomic desk chair designed with a  curved backrest. This ergonomic backrest of bionic ridge protection  design is suitable for human curves, in line with ergonomic  principle.There is an adjustable lumbar support in your back, which is  designed to protect your spine and relieve back and spinal pain during  long-time work.  [Soft and Durable]-The Cushion of this ergonomic office chair is  made of high density pure sponge with strong load bearing capacity. This   seat cushion is soft and elastic enough to reduce the pressure caused  by sitting for a long time. The design of desk chairs with wheels is  flexible and silent, allowing for smooth sliding.  [Easy to Install] All of our ergonomic office chair support  one-year warranty, if you have any questions about our office chairs,  please feel free to let us know, we will provide you with the best  soluton.  Specifications:  Color: Black/ White/Black-S/White-S/Black-M/ White-M Weight capacity: 300 lbs Chair Dimensions:  29.9″ L x 24.4″ W x 45.3-51.6″ H Seat Dimensions: 25″ L x 18.8″ W Adjustable seat height: 16.1-20.1″ Chair Height: 45.3″-51.6″ Net Weight: 38.1 lbs Seat Cushion Thickness: 3.1″ Packing list: 1x mesh office chair, 1x user manual