QISHI Trailer Hitch Coupler Lock, Dia 1/4 Inch 3/4 Inch Span Heavy-Duty Trailer Hitch Lock with Keys, Anti-Theft Metal Trailer Tongue Locks for Tow Boat RV Truck Car's Coupler Lock  (Black)

Enhanced Quality: Constructed of sturdy zinc alloy, our trailer pin locks are tough, highly impact resistant, and less prone to wear and tear. The product's black surface finish provides excellent corrosion resistance to withstand various harsh weather conditions Reliable Security: The padlock-style design and heavy-duty construction greatly increase the security of this trailer lock. The lock cylinder we use has excellent anti-theft properties and is difficult to open without a key. This lock is strong and reliable and will not accidentally disengage over bumps Operating Instructions: Insert the key and turn the key 5-7 turns to unlock, then align the pin with the keyhole and turn the key 5-7 turns to lock. The turn-lock design makes this trailer lock easy to lock and unlock and also makes it easier to clean out buildup inside the lock Applicable Scope: The latch pin is 1/4 inch in diameter with an effective length of 3/4 inch. This hitch lock is widely used for couplers on tow trucks, boats, RVs, trucks, and cars. Please make sure the pin size is right for your trailer hitch coupler before purchasing Package Contents: Available in one-piece and two-piece packages, the one-piece package contains 1 lock and 2 keys, and the two-piece package contains 2 locks and 4 keys. You can choose the desired quantity as needed; if you encounter any problems, please feel free to contact us