Material: Inorganic acid inhibitor, brightening agent, copper corrosion inhibitor Size: 5*5*16cm / 1.95"*1.95"*6.24" Color: as shown in the picture 1. Low foam and high cleanliness: Patina cleaner's low foam formula helps reduce foam during the oxidation removal process, providing a more thorough cleaning effect. 2. Fast dissolving: Effectively dissolves oxidation layers on copper, bronze, tin, and copper alloys without the need for extensive wiping. 3. Gentle formula: Designed to clean without damaging copper or bronze surfaces, helping preserve your items. 4. No residue: Cleans without leaving behind traces or residues, maintaining the appearance of your copper and bronze items. 5. Economical and practical: Offers an efficient and cost-effective solution for cleaning and maintaining copper and bronze items. Package includes: 1 x patina cleaner