Green Bean Rusterizer - Organic Rust Remover That Needs No Wiping or Scrubbing Works Within Minutes - Quickly Removes Rust, Lime, & Calcium Within Minutes Without Wiping or Scrubbing Great For Outdoor Surfaces - Effective on concrete walkways, driveways, non acrylic tubs/sinks, shower heads, bathtubs, showers, toilets, dishwashers and counters, vinyl and aluminum siding, stucco, metal, wood, plastic, stone, painted surfaces, stone, grout, chattahoochee and fabric-made items Will Not Harm Plants or Grass - Feel secure with Rusterizer that your grass and plants will not be damages. It is recommended to remove any over spray. 100% Satisfaction Guaranteed - If you do not see the rust remove entirely using Rusterizer then you will receive a full refund, guaranteed. Our chemist work hard to make sure the product works every time. Not Recommend To Use On Ceramic Tile, Indoor Marble/Natural Stone, Porcelain, Stainless Steel or Glass