Abstract: An exercise device is provided as a set of inner rails pivotally connected to a slide bar adjustably supported by a vertical support member and a set of outer rails pivotally connected to the set of inner rails at a rail pivot point with a strut pivotally connected to the vertical support member and the rail pivot point. A user support platform is rollable along the inner and outer rails when the inner and outer rails are extended from the vertical support member. Pulley means are connected to the vertical support member and a connector means extends through the pulley means to the user support platform allowing an exerciser positioned on the user support platform to propel the exerciser along the inner and outer rails. The exercise device may include a foot rest at one end of the outer rails allowing for additional exercising. The exercise device may also include a foot harness attached to the connector means to allow for additional exercise use.