The 47115 provides 48 inches of extension length to provide extra reach where needed. This item can be used as an extension or cut in half to use as separate vehicle and trailer connectors. Package includes a dust cover to protect exposed terminals, cable ties to mount the harness out of harms way and di-electric terminal grease for applying to the metal terminals to protect from corrosion. Product Features:Plug-In Simple AdapterExtends Wiring System For More Flexibility48 in. LongMeets SAE StandardsPrinted Wire Functions For Easy Wire ReferenceCorrosion Resistant TerminalsIncludes Dust Cover And Grease Packet To Prevent Corrosion