The CE233R gives you the ability to join several wires at once. This can be particularly helpful in situations when resilience against vibration is crucial. It provides a way to make a simple connection for electrical wiring applications. Connectors of this type are also known as crimp connectors, due to the fact that crimping the insert helps to hold the wire connection securely. The nylon covering acts as insulation for the copper insert. The tin plating on the insert helps provide protection from deterioration.