Function:1.Anti-static resin:The cleaning pen is made of anti-static material, dust-free cleaning filament, and cleaning reagent to prevent cross-contamination caused by dust. 2. Excellent Cleaning Effect: With 99% cleaning ability, our fiber optic cleaning pens are very efficient and will save you time and effort. 3. Small and Portable: Compact and easy to carry, this fiber optic cleaning pen is suitable for 1.25mm fiber and can be used at any time for your cleaning needs. 4. Durability: Cleaning pen can be cleaned more than 800 times, automatically change the cleaning filament with the push of a button. 5. Easy to use: Cleaning pens do not need to be wiped with alcohol and remove dust and debris from fiber optic edges. How to Use: Take out the product and follow the instructions. Specifications: Item Type: Fiber Cleaner Pen Material: Antistatic Resin Cleaning Times: > 800 Cleaning Capacity: Up to 99% Applicable Range: 1.25mm (LC, MU) Storage Temperature: -30 ~ 70 °C Package List: 1 x Fiber Cleaner Pen 1 x Instruction Manual