Universal Spartan Torsion-Flex 5" Offset Gooseneck Coupler w/SnapLatch 2-5/16" Standard Height (GENGH-7042)Description The Spartan Torsion Flex gooseneck coupler uses a 4" round tube with a 5" offset and a 2 5 16" SnapLatch coupler at standard height. Torsion Flex technology isolates the truck from the trailer for a smoother, safer, more controlled tow. Features 5" offset, 4" round tube design 2 5 16" SnapLatch coupler Torsion Flex technology reduces shock transfer Standard height configuration