Drawing Chair with Lumbar Support, Height Adjustable, Swivel - Black4D Lumbar Support: Equipped with an ergonomically curved backrest and an adjustable lumbar support that can be adjusted vertically as well as moved forwards and backwards, this desk chair offers optimal support for your back during long working hours. Height Adjustable from 5378 cm: Adjust the seat height of this standing desk chair to your needs and position the footrest so you can comfortably rest your feet, whether working or relaxing. Space Saving