This thing looks tough and is claimed to be weatherproof. It easily rolls from the cab to the tailgate on anodized rails, making access to tools a simple affair. It uses ball-bearing rollers to ride on its sturdy aluminum tracks, which mount easily and quickly to almost all truck beds without drilling. They anchor into the truck's existing stake pockets. The box then rolls into multiple positions along the track and can be locked into several spots. The Rollerbox Professional is made of diamond-plate aluminum and boasts a 300-pound capacity. The large top portion uses a gas-lift strut to hold its lid open, while the lower portion includes six ball-bearing drawers and detaches from the entire unit. A full range of accessories are available.