180PCS Electrical Wire Connectors Screw Terminals, Easy Twist On Connector Kit with Spring Insterted Cap Connections Assorment Set - Gray, Blue, Orange, Yellow and Red Connectors with Storage Box.Features: -No need pre-twisting wire, soldering or electrical tape, no tools necessary.-Cone shaped spring pull the wires into connector and screw on.-Assorted size fit for various electrical wire gauges, great addition to your electrical connector kit.-Great for home theater, speaker wire, stere wiring, automotive, marine wiring projects, househould wiring projects, commercial or residential applications, etc.