Compatible: The pins clip clamp is great for bike, trucks, boat, trailers, tractors or other locking machinery and farm equipment. Premium Quality: Made of durable carbon steel material, the locking pin is tough and sturdy, not easy to deform or to be impacted, fits for long term outdoor use. Main Function: The special designed pin ring clip is a fastener used to prevent a wheel or other part from sliding off the axle upon which it is riding. Easy to Use: Structurally strong, you can snap the ring and pin into axle to tightly secure wheels or hold trailer hitch. Convenient for using and not easy to loosen. Fine Workmanship: Professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability. Specification: color: redsilver Item Type: Trailer Spring Pin Latch Material: Iron galvanized Plug Diameter: Approx. 10mm/0.39in Fitment: Suitable for Trailers, RVs, caravans Package List: 1 x Barrel Bolt Latch