The Rollerloader’s patented design makes it easy for one person to quickly top their vehicle with their favorite piece of sporting equipment without scratching their car. It’s simple design and operation enables you to easily load your boat without having a permanent attachment on the car or rack. The Rollerloader is independent of the car rack system & quickly attaches to your vehicle using two vacuum suction cups and two anti-slip straps. The Rollerloader can be mounted on the back or front of the car, whichever is lower and easier to lift to. The Rollerloader can even be used as a dolly! The Rollerloader works on all Types of cars, wagons, and SUV’s !!