The Steel Anti-Theft Receiver Hitch pin protects your boats, campers, trailers, equipment, and other valuable assets from theft. It easily secures your ball mount or hitch accessories to the receiver hitch by inserting the pin into the fastener hole once you have positioned the ball mount or hitch accessory in the receiver hitch. The hitch pin has a 1/2 In. pin diameter and is designed to work with Class II, 2 In. receivers and ball mounts. The pivot latch allows you to install and secure your ball mount without the hassle of installing a cotter pin. A lock can be added to the pivot latch for extra security. The hitch pin provides a tight and secure fit, and is made of corrosion-resistant materials designed to withstand extreme weather. Lock sold separately.