These are used to join two ends of a stranded low voltage cable. These connectors are easy to handle and easy to use. These connectors have an adhesive on the inside of the connectors that helps keep the connection strong when properly installed. Note that when using these connectors, these connectors are not flexible and are very stiff. The seller described the actual product well. . Make sure your project has the correct AWG wire for these connectors. I highly recommend purchasing more of these connectors for use in new vehicles coming into my fleet.