Keep your supply cupboard fully stocked with 3M Splice Connects. This package contains 50 splice connectors made with a durable one piece electrolytic copper construction for superior strength and reliable conductivity. These blue splice connects are compatible for use with 16 to 14 gauge wires and both 6 and 12 volt systems so you can take care of a wide range of electrical applications with this pack. When you insert the wire the built in-stop will ensure it is positioned correctly and a crimper will help you achieve a professional finish.