... wire connector 1.easy to connect and hold wire tightly 2.insulated:material:nylon 3.terminal material:copper spiral plastic wire ... connectorUsage:peel wire coat,insert the wire in,then tighten. wire connectors come in different ... color,the color indicates the size of the wire that they are capable of holding secureITEM NOWire ... 4×216.013.026.5Red Plastic Wire Connector