The latest 2in1 Nano-formula created for the removal of stubborn brown discoloration/tea stains from stainless steel, silver/brass patina or other contaminations from uncoated metal surfaces. The advanced micro abrasive blend makes it easy to remove all stains and the hydrophobic active substance provides long lasting, durable, ultra-thin protection. Older surfaces can be brought back to the original condition very easy. The surface will remain shiny even in harsh marine environments or in areas with high pollution/dust levels. To maintain use only soft clothes and water.