Actual arm and/or mechanism detail may differ slightly from image.
Raise or lower to allow your feet to rest flat on the floor. Avoids pressure under your thighs, easing blood flow.
Raise or lower to position lumbar support in your lumbar area. Reduces likelihood of back pain.
Reduces pressure at the back of your knees, contributing to good blood flow.
Support the body, effectively, allowing you to sit longer without discomfort.