The document describes 'Lift', a fast-acting brick and patio cleaner designed to remove mortar, salts, algae, and moss from various surfaces while being safe for use on ferrous metals and most paint finishes. It contains a blend of detergents and acids that makes it more effective than traditional acid cleaners, and provides detailed instructions for application, first aid measures, and safety precautions. The product is classified as an irritant and should be used with appropriate protective gear and ventilation.