Lever Edge, plugs and connectors are designed for timesaving, fast, and easy installations. Simply open the lever, push the wire into the lever terminal, click down, and you're done. The lever mechanism on our Lever Edge devices provides a strong, secure wire connection, ensuring superior performance and long-lasting reliability. The clear back cover allows you to easily view the connection status. If you need to unwire or uninstall, just open the lever and pull the wire out. Black & White Lever Edge.