Positive and Negative Terminal Tools: These battery terminal connectors have positive and negative terminals, equipped with battery terminal spacers to provide a more flexible connection. Simple Installation: They fit the battery terminals without any hassle or adjustment. Installation is easy and only requires a set of Allen keys. The battery wire is held firmly with special screws. Premium Battery Terminal: Made of zinc alloy with excellent signal transfer, high electrical conductivity and corrosion resistance. The positive and negative terminal connector is clearly marked for easy identification. Universal Application: Suitable for most battery models. Works well in solar panels, distribution boxes, marine, golf carts, vehicles, motorcycles, boats, trolling motor wiring, other outdoor applications and household applications, etc. What You Get: The battery terminal connector set contains 1 pair of battery connector clamps, 2 clear plastic covers, 2 adjustable spacers. A complete