*KeyFeatures *Fits 3 Coupler Sizes: This coupler lock fits 1-7/8-inch (47.5 mm), 2-inch (50.6 mm), and 2-5/16-inch (58.6 mm) straight tongue ball couplers, offering security for your RV or trailer. Note: Check coupler size before purchase. Not for couplers wider than 4.34 in *Heavy-duty Anti-theft Design: Made from tough carbon steel, this trailer lock weighs 6.83 lbs with a 0.31-inch thick wall, resisting crowbars, drills, and tools. Its 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 4 keys for your convenience *Durable & Rust-resistant: The trailer hitch lock is powder-coated for corrosion resistance and features an all-copper lock cylinder 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 ******************************************************************************************************* *Specifications Item Model Number: THS003 Style: Nesting Main Material: Carbon Steel + Surface Coating Compatible Coupler Type: Flat Edge Ball Coupler Compatible Coupler Sizes: 1-7/8 in / 47.5 mm; 2 in / 50.6 mm; 2-5/16 in / 58.6 mm Product Weight: 6.83 lbs / 3.1 kg Product Dimensions: 5 x 3.46 in / 127 x 88 mm Wall Thickness: 0.31 in / 8 mm Lock Internal Height: 2.65 in / 67.3 mm Lock Internal Diameter: 4.34 in / 110.2 mm ******************************************************************************************************* *Pakcage Content 1 x Trailer Coupler Lock 4 x Keys