The gray Strain Reliefs from Platinum Tools are designed to be crimped with your EZ-RJ45 CAT6 connectors to meet Category 6 requirements. Each of the fifty pieces will not pull off the connectors once terminated and is compatible with cables having a maximum diameter of 0.235". The relief optimizes the electrical performance of the termination by maintaining the bend radius of the cable exiting from the rear of the connector. Furthermore, you may also use these reliefs with standard RJ45 modular plugs.