ReForm foot-operated with ring barThis chair comes with a function that allows you to adjust the chair height with your foot, so you avoid using your hands. This is particularly important when you need to change the height in a sterile environment. This chair also features a ring bar, but don't mistake it for a backrest! The ring bar has several benefits. It allows you to position the chair when you sit on it, and makes the chair easier to move around. Thanks to the stepless