COMPATIBILITY NUOVEPE trailer coupler lock is specifically designed for 2 inch couplers, ensuring a secure and snug fit. Please verify your coupler size before purchasing to achieve a seamless locking experience. ANTI-THEFT PROTECTION Equipped with a high-security brass lock core, this trailer lock features professional-grade pick-resistant capabilities, effectively deterring thieves from tampering and protecting your trailer and valuable property. UNBREAKABLE STRENGTH Crafted from heavy-duty hardened steel with reinforced housing, this trailer tongue lock withstands hammers, crowbars, and power tools, delivering comprehensive and long-lasting security. ALL-WEATHER DURABILITY NUOVEPE trailer hitch lock features a premium powder-coated finish with rust, corrosion, and weather resistance, ensuring reliable performance in extreme climate conditions. USER-FRIENDLY DESIGN Ingeniously designed to simplify installation, this 2 inch ball hitch lock includes three keys for added convenience and flexibility, saving you time and effort.