1、11 Pieces Fiber Cleaning Kit: Including 1.25mm and 2.5mm optical fiber end cleaning pens, cleaning box, end cleaning paper, 1.25mm and 2.5mm cotton swabs, brush, etc., to meet the basic cleaning needs of optical fiber. 2、Cleaning Pen and Box: The fiber optic end cleaning pen can effectively remove 99% of stains, with over 800 cleaning times. The fiber optic cleaning box has over 550 times, and SC FC ST LC can replace the core. 3、High Efficiency: Easily remove dust, oil, and other debris from the fiber. Manual operation, lightweight design, replaceable core. Provides excellent end and connector polishing without the use of solvents. 4、Fiber Cleaning Paper: This type of fiber optic cleaning paper has strong antistatic performance, which can prevent dust from reattaching to the core after cleaning. Non woven fabric is suitable for both wet and dry use. 5、Portable Storage Bag: This kit comes with a portable storage bag that can be carried on the shoulder or by hand, making it convenient to organize and store these fiber cleaning tools, for easy use and portability.