Maintain optimal signal quality by removing dust and particulate matter from fiber optic connectors; Supports LC/SC/ST/FC-UPC and APC polished fiber ends - Convenient push-button design; Press to retract shutter and expose the cleaning belt - Ideal for fiber optic networks/data centers/server rack installations; Suitable for onsite maintenance of fiber patch panels connections/transceivers - Portable and Lightweight; Supports up to 500 uses; Shutter automatically resets after each use