Features: This fiber optical cleaning pen efficiently removes 99% of contaminants suitable for 2.5mm 1.25mm connectors for universal fiber optical maintenance. Featuring 180 degree rotating cleaning mechanism with resin, it thoroughly cleans fiber end face while minimizing abrasion during connector adapter maintenance. Ideal for networking technicians, data center engineers, and home users requiring reliable fiber optical cleaning tools for equipment and home networking devices. Perfect for maintaining transmission in office networking, or fiber optical installations where connector interfaces are critical. Simplifies identification between connector types, while fiber optical cleaning tasks for both professional and application. Specifications: Component: Fine fiber Size: Approx.185mm/7.28inch Specifications: 1.25mm/2.5mm. Number of cleanings: >800 times. Storage temperature: -30~80℃. Package Includes: 1Pc Fiber optical Cleaning Pen note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.