ITEM NAME:1 Trailer Zinc Alloy Hook Lock Ball Coupling Anti-Theft Device Trailer Acce M1F1 1 Trailer Zinc Alloy Hook Lock Ball Coupling Anti-Theft Device Trailer Acce M1F1 Type: trailer coupling lock Color: silver Material:metal Size: 50 mm Applicable models: all kinds of vehicles, yachts, mobile facilities and other connection locks Feature Description: Made of high quality zinc alloy for all common trailer couplings The ball lock is an anti-theft lock that can be extended and locked within the trailer's coupling to prevent the trailer from being attached to the towel. Keep the vehicle and trailer connected; help prevent the coupling from being stolen Covering the keyway prevents dust and corrosion in the locking mechanism. Package Contents: 1 x lock 1 x hex wrench 2 x key