Feature:1. Function: This trailer safety chain is designed to connect from your trailer to your vehicle to help resist complete vehicle trailer separation in the event of a disconnection while towing.2. Practical: For safe, secure coupling to the vehicle, this 39inch long trailer chain comes with a pre attached safety chain hook. The 0.47inch S hook is used to prevent accidental disengagement.3. Premium Material: This anti stripping chain can carry up to 3500lbs and is made of galvanized steel, which has high strength, not easy to break, stretch resistant, and provides better traction.4. Application: Safety chains are required for all towing applications and serve as added protection in the event your trailer becomes unhooked during transit, can be used for trailer and RV.5. Operation: When connecting safety chains for towing, two chains should be used. The safety chains should be crossed once underneath the coupler and hooked onto the trailer hitch receiver safety chain loops.Specification:Item Type: Trailer Safety ChainMaterial: Galvanized steelLength: Approx. 1m/39in (manual measurement, please allow 2-3 cm error.)Load Capacity: 3500lbsChain Wire Diameter: Approx. 7mm/0.28inS Hook Wire Diameter: Approx. 12mm/0.47inFitment:Suitable for trailer and RV.Package List:1 xSafety Chain