Ultra Spec's Cassette Cleaner is designed to clean various connector types, without the use of alcohol or other harsh chemicals. Keeping connectors clean is essential in optimizing your fiber optic connection, so with one swipe on the superfine tape, your connectors are free from contamination, without the potential of getting nicked or scratched by alternative cleaners. The advantage of using an alcohol-free solution also benefits the connection, since no blooms are left behind on the connector face.