Marine replacement battery terminals feature Brass construction for maximum corrosion resistance. Plated Brass Terminals give a longer life to your battery connection. Terminals have a stud connection post - 3/8\" post for Positive Cable and 5/16\" post for Negative Cable. Each terminal comes with a nut and bolt giving tight connections to battery post for solid electrical contact. Before installing select the correct polarity. Wing nuts securely hold battery cable end ring to Marine Terminal. The pack has 1 positive and 1 negative terminal.