Remove stubborn stains: 100% natural pumice stone, firm, high density, no scratches. Pumice stone toilet can easily clean stubborn lime, pool tiles and toilet lids, also available remove calluses and rough and dry skin safely and effectively. No scratching of the surface: the pumice stone brushes have a fine, uneven surface with small holes that increase friction on the stain and thus remove dirt, so that the high density of the pumice stone does not damage the surface of the toilet. Cleaning tight areas: When you clean the narrow edges and corners of the toilet or other fittings, it can be sharpened into different shapes to clean the narrow edges and corners that other cleaning tools cannot reach. Environmental protection: made of natural pumice stone, environmentally friendly and safe for children, pets, plants and water, non-toxic and odourless. It is preferred over chemicals and detergents as the most effective stain removal method. Care for your hands: The toilet bowl cleaning stone is equipped with a sturdy plastic handle that is so finely crafted that it sits easily and without burrs in the hand while keeping your hands clean and comfortable.