What makes the Hill-Rom® Stretcher easy to maneuver within the hospital?

What makes the Hill-Rom® Stretcher easy to maneuver within the hospital?
 

Hill-Rom Steering Plus™ system helps give you controlled maneuvering. When activated, the Steering Plus system helps you in two ways. First, the center wheel design grips the floor to help you transport your patient in one straight line. Second, the center wheel cuts your turning radius in half, giving you the ability to change direction on a dime and make tight, crisp turns down narrow hallways.