Water-proof Carry Bag -- Research has shown over 85% of fiber optic network failures are caused by contamination on the optical connector end-. For best optical performance, it is imperative that all optical fiber connections are clean and free of contaminantsThis is a Practical and Useful Tool Kit -- We carefully select and group those fiber optic cleaning which are essentials for your fiber optic cleaning tasks. They can effectively and quickly clean connector end-, remove dust, , and other debrisA Cost-effective Fiber Optic Cleaning Tool Kit -- Fiber Clean Cassette can be used more than 550 for , , ST, LC, while 1.25mm / 2.5mm One Click Fiber Cleaner can be used more than 800 . Low cost per cleanSuperior Quality for Wide Application -- for using on splice prep, connector end- on and through bulkhead adapters, can effectively prepare splicing, clean connectors, maximizing network performanceMaterial: plastic+metalcolour: as shownPackage Contents:1 x Fiber Cleaning Cassette1 x 1.25mm Cleaning 1 x 2.5mm Cleaning 1 x 1.25mm Cleaning Cotton Kit(100PCS)1 x 2.5mm Cleaning Cotton Kit(100PCS)1 x Dust-free Paper Kit(50PCS)1 x Air Blowing and1 x Brush1 x Alcohol Pump 1 x Water-proof Carry BagOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.