Ultra Spec's One-Click Fiber Cleaning Pen is a must-have for every Field Technician's Tool Kit. It's the quickest and most effective way to clean connectors and adapters to maximize a network's performance. The easy to use pen automatically advances with each use, to ensure proper cleansing and the audible click lets you know when the pen is activated. Great for use with jumpers, adapters, servers, switches, routers, OADMS with 2.5mm SC, ST and FC interfaces, Cable Assembly Facilities, Test Labs, outdoor FTTX applications, etc. Disposable after 500+ uses. We also carry the pens to clean LC, MU and MPO interfaces.