Feature:1. Easy to install and remove.2. Heavy duty high hardness material, High quality and wear-resistant.3. Whole rust and corrosion resistant.4. Spiricle port, stable installation, skid-resistant.5. Large bearing capacity, tear-resistant.6. The key opening and closing, quick and convenient.7. Fits hitch sizes 1-7/8\", 2\", and 2-5/16\".8. Lock mechanism resists picking and prying, guards against tow-away trailer theft.Specification:Universal type hook trailer lock, heavy duty high hardness material, High quality and wear-resistant, spiricle port, stable installation, skid-resistant, large bearing capacity, tear-resistant, the key opening and closing, quick and convenient.Features:Easy to install and remove.Heavy duty high hardness material, High quality and wear-resistant.Whole rust and corrosion resistant.Spiricle port, stable installation, skid-resistant.Large bearing capacity, tear-resistant.The key opening and closing, quick and convenient.Fits hitch sizes 1-7/8", 2", and 2-5/16". Lock mechanism resists picking and prying, guards against tow-away trailer theft.Specifications:Color: Blue, Orange, Black, Yellow (optional)Applicable Hitch Size: 1-7/8", 2", And 2-5/16"Model: Universal Function: Wear-Resistant, Anti-Rust, Large Bearing CapacityPackage Weight: 830g / 29.28ouncesPackage Size: 160 * 145 * 80mm / 6.30 * 5.71 * 3.15inPacking List:1 * Trailer Lock1 * KeyPackage List:1 * Trailer Lock1 * Key