Plastic clamps for quick and easy connection of two wires. It is used when it is difficult or not desirable to bare a cable core for a longer length to make a connection of equipment. The two ends of the wire are inserted into the clamp and then the contact plate is pushed down with pliers, ensuring a tight connection. Includes 10 connectors in your choice of red or blue color. Size is 1.2x0.4 inches.