Type: Trailer hitch lock. Color: Silver. Material: Zinc alloy. Size: 50*65.5mm. Weight: 0.4 kg. Package includes: 1 ball lock + 1 Allen key + 2 keys. Made of high-quality zinc alloy, suitable for all popular trailer hitches. A ball lock is an anti-theft locking device that expands and locks into the trailer hitch, preventing the trailer from attaching to the tow ball. Keeps the vehicle and trailer connected; helps prevent hitchhiking. The covered key slot prevents dust and corrosion in the locking mechanism. The high-quality zinc alloy trailer safety lock keeps the vehicle and trailer connected and works with all common trailer hitches. Corrosion-resistant die-cast zinc alloy ball lock, made of high-quality zinc alloy, fits most 50mm connectors. Locks into the hitch head to prevent theft and unauthorized use of trailers and boats. Features a dustproof and weatherproof cover and a convenient upright design for easy use. The covered key slot prevents dust and corrosion in the locking mechanism. Note: Due to differences in lighting and screen settings, the item's color may be slightly different from the picture. Please allow 1-3cm difference due to manual measurement.