Jacobs Ladder 2 Exercise MachineGet the same workout and same reliability as the revolutionary Jacobs Ladder climbing machine, yet designed for the home or small commercial environment - at a lower price. They took the Jacobs Ladder and made a few changes: Width: The Jacobs Ladder 2 is 27.25" wide, allowing it to fit through most interior doors in a home. Rung Design: The Jacobs Ladder 2 featured steel rungs with polyurethane sleeves. Power: The workout remains self-paced. However, the Jacobs Ladder 2 needs to be plugged in to operate the digital display. There are four differences between Jacobs Ladder and Jacobs Ladder 2: Different rung design (maple rung versus polyurethane) Power requirement (self-powered versus 110/220V) Width (31.25" vs 27.25") Warranty (4 Year Parts/1 Year Labor vs 2 Year Parts) Other than that, the workout on the Jacobs Ladder 2 home fitness equipment is exactly the same with the same results! Ceiling Height Requirement: 7.5 Feet