Our Bbq grill bricks are made of 100% ecological material that is odorless and safe do not absorb the grease and gunk and safe for people, animals, plants and water. It 't scratch your ceramic tile and metal, these cleaning bricks is your safe solution 6 Pack cleaning stone 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 Grill brick is a brick with a natural anti slip grip make cleaning feel like a walk in the park without having a handle or spikes in the way, you can also use it on your oven, kitchen utensils, and enameled surfaces The stone size our set of cleaning blocks has 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 There are no bristles or spikes