Draw-Tite Dogbone Style Receiver Lock

5/8 in. Dogbone Style Receiver Lock, 3-1/2 in. Span for 2 in. and 2-1/2 in. Receivers (63252) by Tow Ready®. Dont let your trailer walk away. Secure your ball mount to the vehicle with a locking hitch pin, and then lock the coupler so the trailer either cant be hitched or unhitched without the key. One-year warranty.