1.Fully automatic movement mode Built-in safety motor automatically drives lower limb movement. Effective lower extremity movement is a key component in maintaining vascular health, muscle capacity, body metabolism, nervous system, and immune system. 2.Forward and Reverse Movement Patterns Positive forward movement is good for exercising the front side muscles and negative backward movement is good for exercising the back side muscles. 3.Active-Passive Mode Active training can improve muscle strength, suitable for people with limb strength, coordination training. Passive training, let the machine with movement, suitable for people with very weak limb strength or muscle weakness. 4.Kick switch design No need to bend down to operate with a memory function of a key switch easier for parents to use. Size:39.5*40*19cm weight:5.15kg