The CE100R allows you to attach several wires at the same time. This can be particularly useful in situations when resilience against vibration is important. It provides a way to make a simple connection for electrical wiring applications. Connectors of this type are sometimes referred to 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, while the tin plating on the insert helps provide protection from deterioration.