Flitz Instant Brass & Copper Tarnish Remover works instantly to remove tarnish and stains from brass, copper, glass, and more. Flitz Tarnish Remover is safer than traditional acid cleaners and easy to use - just spray and rinse, no rubbing necessary. Flitz Instant Brass & Copper Tarnish Remover uses an eco-safe organic salt formulation, making it safer than acid-based cleaners. This product is perfect for removing hard water stains and calcium deposits on brass and copper fixtures. Flitz Instant Tarnish Remover also removes heavy tarnish, rust, corrosion, and oxidation.