1Accuracy Cleaning: Our fiber optic cleaning pen, with fine fiber silk material, enables 180 rotation for effective reduction of fiber end face damage. 2Consistent Results: This cleaning pen provides repeatable anti static cleaning effects, with over 800 cleanings per use. The cleaning pen is designed for long lasting use, ensuring durability and effectiveness for an extended period of time. 3Universal 1.25mm LC MU Pen: Specifically designed to clean the ferrule end faces of SC, FC, and ST connectors with UPC polishing agents. 4Universal 2.5mm SC FC ST Pen: Designed for cleaning SC, FC, and ST connectors with UPC polishing agents. Suitable for 2.5mm ferrules. 5Efficient Dust Removal: Our optical fiber connector cleaner effectively cleans dust and contaminants from the appearance of fiber optics, ensuring optimal performance and longevity. 2 x Fiber Optic Cleaning Pen 2 x Instruction Manual