Simply45 ProSeries RED locking pin for Simply45 Strain Relief Boots S45-B001 and S45-B002 will greatly reduce truck roll backs from tampering with network connections and accidental disconnections. Strain reliefs prevent excessive bending or twisting of the cable near the connector, reducing the risk of damage to the internal wires and ensuring a longer lifespan for the cable. Simply45 strain reliefs are the same width as the RJ45 connector body and becomes integrated into the RJ45 plug during the crimping process. The extended tab provides a snag proof protection for the locking tab on the plug. Adding strain reliefs is a cost-effective way to ensure the longevity and reliability of your network connections.