DESIGNED FOR 2" AND 2-1/2" RECEIVERS: This AUTO hitch receiver pin lock features a 5/8", making it perfect for Class III/IV 2", 2-1/2" hitch receiver tubes. Ensure your towing safety with a reliable lock that's easy to handle. ROBUST MATERIAL CONSTRUCTION: Constructed from black electrophoretic painted carbon steel, this trailer receiver lock is solid and resistant to bending. It features a 360-degree rotating head for ease of use and an all-weather rubber key slot cap to protect the keyhole from moisture, dust, and rust. VERSATILE USE: Compatible with a variety of towing setups, the hitch pin lock is ideal for securing hitch racks, cargo hitch trays, bike racks, hitch balls, and tow ropes. It's the perfect addition to your trailer, truck, RV, or boat setup. About this item FIT FOR 2" 2-1/2" TOW RECEIVERS: CZC AUTO dogbone style trailer hitch receiver lock uses 5/8" pin with 3-1/2" effective length perfect for Class III/IV 2", 2-1/2" hitch receiver tubes. PREMIUM MATERIAL: The trailer receiver lock uses black electrophoretic painted carbon steel, solid and hard to bend. 360 degree rotating head, easy to handle. All-weather rubber key slot cap keeps the keyhole away from moisture, dust and rust. Updated tubular key hole, zinc alloy lock core. FITMENT TYPE: Use a tow receiver lock to ensure the towing safety. CZC AUTO hitch pin lock is compatible with hitch rack, cargo hitch tray, bike rack, hitch ball and tow rope, perfect for 2" and 2-1/2" receivers on trailer truck RV car boat. CLIENT SUPPORT: 30-day money-back for any reason, 12-month warranty for quality-related issues. Please feel free to contact us at first if there is any problem when you receive or use our products. We are always here to support you. Color: Black Material: Carbon Steel Package Contents: 1 Hitch Receiver Pin Lock