48" Trailer safety chain with 7/16" S-hooks, 5,000 lbs break strength. This trailer safety chain is designed to connectfrom your trailer to your vehicle to help resist complete vehicle-trailer separation in the event of a disconnection while towing. Add versatile towing options to your vehicle with this class 1 trailer hitch. It provides a standard, square1-1/4" receiver hitch and comes with a ball mount with a 3/4" ball hole to connect a small trailer. For safe, secure coupling to the vehicle, this 48" long trailer chain comes with two pre-attached safety chain hooks. The 7/16" S-hooks arefast and easy to install. When connecting safety chains for towing, two chains should be used. The safety chains shouldbe crossed once underneath the coupler and hooked onto the trailer hitch receiver safety chain loops. This trailer safety chain is constructed from 1/4" diameter, high-strength steel links and isspite of the outdoor elements.