The Hosa D5S6 DeoxIT contact cleaner is a fast-acting deoxidizing solution! This D5S6 contact cleaner spray was designed for use as a general treatment for connectors, contacts, and other metal surfaces. More than a just any contact cleaner, Hosa DeoxIT chemically improves electrical connections to ensure clean and clear sounds. The Hosa D5S6 DeoxIT is an essential accessory every musician must have!