FTZ battery terminals, crafted for maximum eco-efficiency under our ECO-MAX line. Crafted with 99% copper and tin plating, these terminals are built for durability and optimal conductivity. We sell the positive and negative terminals, it comes with adhesive black heat shrink featuring dual-wall 3 to 1 ratio for enhanced protection. What's more, each terminal set comes with nuts and bolts for easy installation. Plus, they offer versatility, as they can be crimped or soldered according to your preference.