Original piece of wiring taken off a 1970 Monte Carlo. Should be compatible with Chevelle models as well. These were taken off the hot wire junction box and they connect to a battery I think. It is a little dirty but there are no splits on the insulation of wiring. The contacts / terminals are a little dirty too and will need to be cleaned off. Diameter of wire is 11/64". Total length from end of terminal to end of terminal is around 18".