When connecting cables, you can quickly add cables without damaging the main cable. Usage: 1) Insert the connector to the main cable existing, add the new cable end to the connector. 2) Squeeze the metal knife with pliers. The metal knife in the connector cuts the insulation of both wire. 3) Check the cables by pulling the cables. 4) Close the protection lid and complete the assembly. Features: Voltage: up to about 600 voltage. Temperature: Durable up to 105 ° C. Nominal Section: 0. 75 to 2. 5 mm² AWG 20-14MAX: 15A Package Content: 10 Fast Cable Add apparatus connector clip.