UWS TBC-48 Chest Box with Beveled Insulated Lid Offset Hinge designed to fit tight against the front of the bed and still allow the lid to open without rubbing Patented fully foamed lid creates a rigid wall between outer aluminum layers to help prevent bending or warping Stainless steel paddle handle lock provides strength,security and rust-free product life 0.063 inch aluminum One-Piece Tub and Lid is designed to support heavy loads, absorb tool drops and prevent leakage and is available in two finishes: Bright aluminum Diamond Tread and Black Powder Coated aluminum Diamond Tread Lid Opens 90 degree for easy loading and unloading of tools and equipment