The HG Headstone Cleaner effectively removes stubborn soiling from natural stone and marble headstones, statues, plaster, and masonry. Spray the cleaner from a distance of about 5 cm onto the surface to be cleaned and let it work for 25 minutes. This headstone cleaner effortlessly removes dirt, bird droppings, and grime, making it a reliable choice for grave cleaning. The 500ml size is convenient for use on a variety of surfaces.