The safety belt features a Plainly seen buckle that may be attached and released easily with one hand (still left or appropriate). This device seems to be most just like a treadmill but its dual-treadles characteristic will allow it to work as a put together treadmill, elliptical, and stair climber. https://landenuyoud.theblogfairy.com/34079033/the-basic-principles-of-stair-climbers