Feature:1. Safe Protection: Locking receiver hitch pin comes with a rubber cover to prevent water and dust penetration, which is weather resistant and tough.2. Application: Trailer hitch locking pin is used for anti theft, and widely suitable for RV, truck, camper, engineering vehicle.3. Easy Using: 5/8in diameter and 9/16in diameter locking pin, easy to lock after opening, sensitive response and flexibe operation.4. Low Noise: This kit includes 3pcs 2in rubber muffler pads that provides additional damping between your hitch and receiver, and can effectively reduce noise.5. Features: Locking receiver pin is made of durable and hard steel with black coated surface, which is rust proof and not easy to broken.Specification:Item Type: Trailer Hitch Locking PinMaterial: Steel and zinc alloy and rubber.Surface Treatment: PaintProduct Function: Prevent theftApplication: Suitable for RV Truck Trailer RV Engineering Vehicle CamperPackage List:2 x Trailer Hitch Locking Pins1 x Pin2 x Keys3 x Muffler Pads