The RJ-45 Boot shields your network connector from moisture, dust, and oxidation. Excellent material that protects the environment is used to make RJ45 plug connectors. Prevent the RJ45 connector's plug clip from being folded. EASY TO INSTALL: They offer strain relief, dust, and snag protection, and they are simple to install. They can be used to cover passthrough connectors and are ideal for usage with cat5e and cat6 plugs. Improved cable flexibility and ease of installation are made possible by the flexible rubber composition. INCLUDED IN THE PACKAGE: 50 Pack of Plastic Strain in RJ45 Ethernet Network Cable COMPATIBILITY: The RJ45 Boots work with Plug Cover Strain Relief Boots for RJ45 Cable Cap Connectors, CAT5, CAT5E, CAT6, and CAT6E. 7.5mm for a 6~7mm OD LAN wire (0.24~0.28inch). Composition: PVC Soft Plastic