Sturdy Build: This trailer lock is made from high-quality iron and aluminum alloy, featuring a galvanized surface that resists rust and endures harsh weather, ensuring long-lasting durability. Vehicle Security: The trailer lock secures your trailer against unauthorized towing, utilizing a heavy-duty U-lock design and bright color to deter theft and prying. Lock Dimensions: 5/8" x 150mm User-Friendly: Simply attach the trailer lock to the hitch; the adjustable U-shaped lever secures with a key, providing easy installation and removal. Versatile: The lock includes 2 safety keys and fits most trailer hitches, offering universal protection for trailers, campers, RVs, or boat trailers when you're away.