1.Bbq grill bricks are made of 100% ecological material that is odorless and nontoxic do not absorb the grease and gunk and safe for people, animals, plants and water. It wont scratch your ceramic tile and metal, these s is your safe solution 2.4 Pack grill stones are used to reomve the BBQ encrusted greases, stains, residues and dirt, No worry about metal in the grate or on grill.which can quickly and easily help you clean-up after cooking without worrying about the scrubbing nightmare afterwards 3.Grill brick is a lightweight brick with a natural anti slip grip will make cleaning feel like a walk in the park without having a handle or spikes getting in the way, you can also use it on your oven, kitchen utensils, and enameled surfaces 4.The stone size our set of cleaning blocks has durable de-scaling construction so as to enhance the cleaning process without straining your hands or wrists, handheld nonslip grip brick are designed in such a way so as to be extremely convenient to use 5.There are no bristles or spikes to break off and get into the food. cleans the grill much easier and more thoroughly than a brush, and you can blow off the dust particles or wipe with a wet paper towel and water after using