Applicable occasions: We provide 12 pumice stones, enough to clean the toilet, griller, BBQ, oven griddles, flat top griddles, kitchen utensils and iron surfaces. High-quality materials: Our pumice is made of good materials, fine and strong, with high density, no irritating chemical smell, very safe; it not scratch your tiles and metal; Help you solve stains and troubles. Perfect size: perfect for your palm, making it easier and more comfortable to clean; perfect size to help you clean edges and gaps for easy access, no more dead ends. Multiple functions: Our pumice can help you quickly and easily clean grease, stains, residues and dirt without scratching surfaces. Precautions: Soak the area to be cleaned and the gray pumice before cleaning, so that the pumice has a more powerful cleaning function.