These Ultimate Connection Safety Chains are built tough! They have been road-tested and meet all current requirements. They come with everything needed to install with your Ultimate Connection (Rail or Gooseneck version), creating a quick installation. Includes 2 chains, 2 D-rings, 2 bolts and 2 nuts. Technical Notes: The two eyelet bolts replace the king pin coupler bolts that ship with the Ultimate 5th Wheel Connection (Rail and Gooseneck version). | Andersen Ultimate Connection Safety Chains for 5th Wheel or Goosneck