Please try it for your year-end cleaning! ^_^ This powerful spray cleaner effectively removes stubborn stains. Includes a 500ml bottle and a 1-liter refill set. - Product Name: HALT - Application: Powerful stain removal - Method: Spray - Ingredients: ● The acidic power effectively removes soap scum, black stains, limescale, verdigris, water stains, and other grime from water areas, as well as urine scale and moss. ● Simply apply to rusted iron to create a rust-inhibiting phosphate coating. The phosphate coating prevents rust from progressing. ● Usable on most metals including steel, copper, brass, alloys, galvanized pipes, chrome plating, nickel plating, stainless steel, and aluminum. Rust inhibitor that forms a rust-inhibiting phosphate coating simply by applying it to rusted iron. Resistant to rust even without a top coat (for several years). Can be applied anytime after drying (2 days or more) (3 days to several years later). Stubborn mill scale on iron can be easily removed with a cloth after application. Environmentally and health-conscious. Contains no lead or chromium. 【Cautions】Natural marble, pearl stone, travertine, and limestone will lose their luster. Stainless steel, aluminum, and copper will experience acid burn and turn white if left on for more than 5 minutes, and will not return to their original state. Always test before main cleaning to confirm the safety of the material against corrosion, discoloration, and gloss. Thank you for viewing.