The Heavy Duty 3-Way Terminal has a solid construction for maximum current carrying capacity and is designed for Group 31 batteries. This product fits 2 to 4/0 gauge cables and an ideal option for connecting several battery cables to one post. The universal fits allows this terminal to be used with a wide variety of battery types. Cast terminals are manufactured with 100% recycled lead. Lead is recognized as the premium choice in battery cable terminals because of its maximum current carrying ability, malleability, and corrosion resistance.