Children transitioning through motor development will benefit from SureStep SMO because it allows for a variety of mobility functions without impeding with normal muscle function. Through this, children would be able to retain full development of their muscles and their functions. This accessory is useful for children with hypertonic foot and ankle or hypotonic foot and ankle as it will help improve their gait and develop proper walking style. Children are able to go each transitional phase of walking, by overcoming the instabilities and weakness in their frontal plane. SureStep SMO is a two-stage device, "an orthosis within orthosis".