A. Heavy-duty general coupling trailer hitch lock, suitable for 1 - 7/8 inches, 2 inches, and 2 - 5/16 inches: Blue general-purpose hitch trailer lock, made of heavy-duty high-hardness material, which is durable and wear-resistant. It has a spiral port for stable and non-slip installation, with relatively large load-bearing capacity and tear resistance. It is opened and closed by key, which is fast and convenient. B. Features: - It is relatively easy to install and disassemble. - It is made of heavy-duty high-hardness material, which is durable and wear-resistant. - It has overall anti-rust and anti-corrosion properties. - It has a spiral port for stable and non-slip installation. - It has relatively large load-bearing capacity and tear resistance. - It is opened and closed by key, which is fast and convenient. - It is suitable for hitch sizes of 1 - 7/8 inches, 2 inches, and 2 - 5/16 inches. - The locking mechanism can resist lock-picking and prying to help prevent the trailer from being stolen and towed away. C. Specifications: - Color: Blue, orange, black, yellow (optional) - Applicable hitch sizes: 1 - 7/8 inches, 2 inches, and 2 - 5/16 inches - Model: General-purpose - Functions: Wear-resistant, anti-rust, relatively large load-bearing capacity - Packaging weight: 830 grams / 29.28 ounces - Packaging dimensions: 160 * 145 * 80 millimeters / 6.30 * 5.71 * 3.15 inches D. Package list: - 1 trailer lock - 1 key