Al Cass FAST Valve, Slide & Key Oil

Al Cass FAST is a classic lightweight brass oil used for fast valve action on trumpets, baritones, euphoniums, tubas, and other piston-valve instruments. It is colorless and odorless, and the Al Cass safety information describes it as a synthetic oil that does not react with metals, cause corrosion, or leave sticky residue when used as intended. Weather-resistant formula won?t separate in harsh conditions.