Feature: HEAVY DUTY TRAILER HITCH LOCK PIN - New version upgraded trailer hitch receiver lock pin with all metal construction, 2 tubular keys included to ensure an easy lock and unlock. UNIVERSAL COMPATIBILITY - The Trailer Hitch Receiver Lock Pin is designed with 5/8"diameter and 3-1/2 long to make it works well with class III IV hitches, big towing vehicle, truck, 2 2-1/2 hitch receiver. (Please confirm your required size or email us for more suggestion before having the order). SUPERIOR QUALITY & FINE WORKMANSHIP - Made of high quality black electrophoretic painted solid steel to offer a super heavy-duty feature for over 30,000 lbs loading (2X) than other lock pins, advanced industrial process, durable, reliable, and long lasting. SAFE & EASY TO USE - The hitch receiver lock pin with zinc alloy tubular lock core in newest anti-theft technology to offer the first grade safety for you, and the dust cap aims to keep the keyhole away from water and dirt, great design for easier using. package includes: 1pcsThank you for your attention, if you want buy more than we listed, please