General description This heavy-duty trailer hitch lock provides reliable security for RVs, trailers, and boats. It is compatible with 2-inch and 2-5/16-inch bulldog couplers, ensuring a snug fit and protection against unauthorized access. Constructed from sturdy carbon steel, this lock is designed to withstand tampering attempts using tools such as crowbars and drills. Its powder-coated finish and aluminum alloy body resist corrosion, ensuring long-lasting performance. Technical specifications Item Model Number: THS001 Main Material: Carbon Steel + Surface Coating Compatible Coupler Type: Bulldog Coupler Compatible Coupler Sizes: 2 in / 50.6 mm; 2-5/16 in / 58.6 mm Product Weight: 11.9 lbs / 5.4 kg Product Dimensions: Φ4.53 x 8.86 in / Φ115 x 225 mm Wall Thickness: 0.24 in / 6 mm Internal Depth: 7.09 in / 180 mm Internal Diameter: 4.02 in / 102 mm Installation Installation is straightforward. Simply unlock, position the lock on the coupler, and fasten it with ease. The design allows