Self-adjusting striker (patent pending) - Self-centering latch strikers never need adjustments and close tightly no matter how hard you push down on the lid Half Pan Support - Stiffener design reinforces the lid for superior rigidity Dampened Gas Shocks - Open at a steady, controlled rate Closed Cell Foam Gasket - Prevents water and other unwanted elements from getting inside the box Crowned Lid - Special design for extra strength Hidden Hinge - Runs the full length of the tool box for extra strength Heavy Duty Aluminum - Built from non-rusting Brite-Tread aluminum Paddle Handles with Guide Plate - Ergonomically designed handles are lockable and made from stainless steel Removable Tool Tray - Made from thick plastic. Perfect for keeping smaller items organized. Not included in the 5th Wheel boxes or sidemounts Limited Lifetime Warranty Length 50 inches Width 20 inches Height 13.188 inches