This 5th wheel safety chain anchor assembly provides a backup connection between your truck and 5th wheel trailer. The chain bracket bolts onto the CrossWing head piece that mounts onto your 5th wheel kingpin. When hitching up your trailer, the chain hooks link up to the 5th wheel loops anchored into the industry-standard rails in your truck bed. This kit includes the safety chain assembly and anchor loops. It is designed to fit CrossWing models that mount onto industry-standard 5th wheel rails.