Features: Essential Dust Protections Specifically for SFP Port, these dust plugs effectively prevent dust, dirt, and other contaminants from entering fiber Optical interfaces, ensuring stable connection and performances. User Friendly with simple , these plugs allow for quick insertion and removal without the need for additional tools, making them easy to replace and maintain. for IT Professional for networking engineers, technicians, and anyone responsible for maintaining clean and efficient fiber Optical connection in various. Usage Scenarios for use in data centers, office networking, or home setups, these plugs for various brands and models of SFP port equipment. Cost Effective from silicone, these plugs offer economical solution to prevent equipment failure due to dust, providing safeguards for networking investments. Specifications: Materials: Silicone Color: Black, Transparents White(optional) Package Includes: 10Pcs SFP Protective Cover note: Please allow 0-1cm error due to manual measurement. make sure not mind before bid. Due to the differenceS between different monitors, the picture may not reflect the actual of the item. Thank you!