The Poly Tongue Storage Box provides a secure, weather resistant place to keep your valuable safe, and dry, while utilizing the "dead space" on tongue pull trailers. It's fully enclosed hinge design enhances security. The durable, UV protected, Poly construction combined with Zinc plated latches ensures it will withstand years of use in the elements. The design fits most A-frame trailers. Securely attach it to your trailer with bolts, nuts and washers "not provided".