When not in use, protect the RJ45 female jack from dust and moisture. Effectively block gaps and prevent dust accumulation. Small handle design allows for easy installation and removal. Anti-dust plugs are made of ABS, a soft and flexible material, ensuring durability and ease of use. Environmentally friendly with no unpleasant odor. Provides insulation and protection for computer interfaces, helping to maintain functionality over time. Helps prevent moisture absorption, corrosion, and oxidation that may lead to short circuits. Reduces static buildup on electronic devices, minimizing the risk of damage. Ideal for protecting open ports, identifying inactive ports, preventing unauthorized use, and indicating connection points for users. Designed to fit all standard Ethernet RJ45 ports. Color: Red + Black Material: ABS Package Contents: 100 x RJ45 Port Hub Anti-Dust Cover 1 x Black Lock and Key Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1-3 cm.