Tie Down Safety’s Trolley accessory is an optional component for the Tie Down’s Securail Pro VII. The Trolly allows quick and easy attachment for users working on a ladder with the Securail. The durable but lightweight aluminum structure makes operation easy. This trolley guides fall arrest with rollers and allows workers to climb up and down smoothly without concern for additional force in the case of fall arrest. The trolley, fitted with an energy absorber, locks immediately in the case of a fall. No special tools are required for this simple installation. The stainless-steel cable runs from the aluminum top to the bottom, which mounts on directly to the ladder. Tie Down Safety maintains high standards and quality control through quality raw materials and components made in the USA.