Features EASY TO USE: LC MU cleaning pen uses fabric cleaning materials, so you don't need to rely on solvents to complete most of the work. Improve work efficiency and reduce on site leaks. CLEAN CONNECTOR AND TIP: Fiber optic pen cleaner can be used as a tip cleaner and fiber optic connector cleaner. IMPROVE PERFORMANCE: Our LC MU cleaner improves signal speed by removing debris from fiber optic cables and connectors. ANTI STATIC RESIN MATERIAL: Made of premium anti static resin material, ensuring that the product is not subject to secondary dust pollution LIGHTWEIGHT: This cleaning pen is lightweight that easy to carry and control, achieve accurate cleaning. Specification: Item Type: Optical Fiber Cleaning Pen Material: Anti Static Resin Cleaning Frequency: Greater than 800 times Cleaning Ability: 99% Application Range: Approx. 1.25mm / 0.05in(LC, MU) Package List:1 x Cleaning Pen 1 x Manual  Package List 1 x Cleaning Pen 1 x Manual