1. 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, durable and wear-resistant, with a spiral port for stable and non-slip installation, large load-bearing capacity and tear resistance, opened and closed by key, fast and convenient. 2. Features: - Easy to install and disassemble. - Made of heavy-duty high-hardness material, durable and wear-resistant. - Overall anti-rust and anti-corrosion. - Spiral port for stable and non-slip installation. - Large load-bearing capacity and tear resistance. - Opened and closed by key, fast and convenient. - 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 prevent the trailer from being stolen and towed away. 3. 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, large load-bearing capacity - Packaging weight: 830 grams / 29.28 ounces - Packaging dimensions: 160 * 145 * 80 millimeters / 6.30 * 5.71 * 3.15 inches 4. Package list: - 1 trailer lock - 1 key