• Fits 2 Coupler Sizes: This coupler lock fits 2-inch (50.6 mm) and 2-5/16-inch (58.6 mm) cast air flow couplers, offering security for your RV or trailer. Note: Check coupler size before purchase
• Heavy-duty Anti-theft Design: Made from tough carbon steel, this trailer lock weighs 11.46 lbs with a 0.2-inch thick wall, resisting crowbars, drills, and tools. It’s built to keep your trailer secure and minimize the risk of theft
• Quick & Easy Locking: Locking up takes less than 30 seconds! Simply unlock, place on the coupler, and secure. One-handed installation and an internal cushion pad ensure a tight, stable fit. Comes with 3 keys for your convenience
• Durable & Rust-resistant: The trailer hitch lock is powder-coated for corrosion resistance and features an aluminum alloy lock body for smooth use. A dust cap secures it from dampness, making it ready for any weather and extending its lifespan
• Reliable Anti-theft Protection: This trailer coupler lock fits most trailers, RVs, and boats. Even if it feels loose, the anti-theft protection remains strong, ensuring your vehicle stays secure and protected, no matter where you park it

Collar Coupler Lock Fits 50.6 & 58.6 mm Couplers Trailer Hitch Lock
Secure Your Trailer from Theft
Compatible with Cast Air Flow Couplers
Reinforced Steel Lock Body
Durable & Corrosion-resistant
Wide Application
Easy Installation
Compatible Coupler Type: Cast Air Flow Coupler,Compatible Coupler Sizes: 2 in / 50.6 mm; 2-5/16 in / 58.6 mm,Internal Space: 5.16 x 5.24 x 4.09 in / 131 x 133 x 104 mm,Item Model Number: THS004,Product Weight: 11.46 lbs / 5.2 kg,Style: Clamp-on,Wall Thickness: 0.2 in / 5 mm,Product Dimensions: 5.71 x 4.61 x 8.27 in / 145 x 117 x 210 mm,Main Material: Carbon Steel + Surface Coating