Needed to connect a new radio to a new power supply - I didn't want to cut off the car cigarette lighter adapter that came with it. There are more than enough wires. Pressure gauge for the expected power consumption and with thick insulation. In fact, I was pleasantly surprised by the weight of the wires, I was expecting less. Two fuses, one on each side. Standard T-connector. This type of part is simple and could be assembled at home if the parts were available or if more than one was needed. But I don't have the parts right now, so this was the most convenient and economical way to get a disposable power cord.