Security-The Kit Includes 100 Pcs, Pct-212*40 Pcs (2 Ports), Pct-213*50 Pcs (3 Ports), Pct-215*10 Pcs (5 Ports). Best Modified Nylon Pa66 Flame Retardant Insulation Material Is Selected, Which Has Long Service Life, No Corrosion, Anti-Aging, Corrosion Resistance. 4Kv Voltage And Electric Shock Resistance.Easy To Clean. To Use: First Remove The Metal Sheath (9~10Mm), Gently Push The Orange Clip Upwards To 90, Insert The Cable And Turn Off The Switch. Unlike Traditional Insulation Tape And Intertwined End-To-End Connectors, Technological Innovation Has Reduced Wiring Time By 70%.Convenience; - These Connectors To; 2 Port / 3 Port / 5 Port Is Suitable For Hard And Flexible Wires. You Can Use Them To Control Multiple Lights With One Switch. 4Mm&Sup2;/28-12Awg And Flexible Wires From 0.08 To 2.5Mm&Sup2;/28-14Awg. It Is Widely Used. In The Wiring Of Buildings, Where Space Is Limited And No Connection Can Be Made.Reusable - Each Connection Terminal Has An Inductive Connection And Can Also Be Recycled. Each Node Has An Independent Shrapnel, And Different Wires Are Managed Separately, And Different Wire Diameters Can Be Safely Connected. . There Is A Test Hole On The Surface Of Each Connector, And Electrical Testing Can Be Performed Without Removing The Tape, Which Is Intuitive And Convenient. Tip: Only One Cable Of The Same Type Can Be Inserted. In Each Terminal.