Universal type hook trailer lock, sturdy high hardness material, durable and wear-resistant, spiricle port, stable installation, non-slip, large carrying capacity, tear-resistant, key opening and closing, quick and convenient. Features: Easy to install and remove. Sturdy material with high hardness, durable and wear-resistant. br/> Entire rust and corrosion resistant. Spiral port, stable installation, non-slip. Large bearing capacity, tear resistant. The opening and closing key , quick and convenient. Fits hitch sizes 1-7/8", 2" and 2-5/16". Locking mechanism resists picking and prying, protects against theft of the towed trailer. Features: Color: blue, orange, black, yellow (optional) Applicable hitch size: 1-7/8", 2" and 2-5/16" Model: universal Function: wear-resistant, rust-proof, large bearing capacity Package weight: 830g / 29.28 ounces Package size: 160 * 145 * 80mm / 6.30 * 5.71 * 3.15in Packing list: 1 * trailer lock 1 * key