Fits Your Coupler: This coupler lock fits 2-5/16-inch (58.6 mm) cast/bulldog coupler, 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 13.45 lbs with a 0.3-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 a 304 stainless steel lock cylinder for smooth use. A dust cap secures it from dampness, making it ready for any weather and extending its lifespan