Use these female slide-on plugs, which are safe and easy to use, to make connections into your cord. Using your cut wire, put the wire in the plug and use the cover to create the connection. These plugs use spikes to connect into the existing wire. No tools needed! They are UL listed and work great for creating an outlet end on Seasonal Source socket cord or lamp cord (#18/2 SPT-1). Create custom-length extension cords in seconds the way the professionals do. These plugs are rated for 10 amps or 125V.