These pliers have nylon jaws, allowing you to work without damaging wires or metal parts. They are also suitable for bending wires without causing scratches and straightening them by removing bends. Replacement parts for the nylon jaws are available for when they wear out or crack, and four types of wire are included. Please check the remaining amount of wire in the photos. ●Notes Please refrain from purchasing if you are sensitive to items stored at home.