This universal marine terminal set from Uriah Products is built to withstand the demanding operation that comes with use in marine applications, and they also work for general automotive use. They're constructed out of cast lead with an epoxy coating to ensure durability, and each terminal has a wing nut cable mount. The red terminal has a 3/8" stud and the black terminal has a 5/16" stud. | Uriah Universal Red/Black Marine Terminal Set