Material: STONE . Used to remove burnt food and grease from outdoor or indoor grills and griddles Works four times faster than conventional wire brushes and scrub pads Reaches all surfaces by conforming to the shape of the grill Made from over 90% recycled materials and is chemical free and non-toxic Safe around children, pets, and food Can be used on all home, gas, or charcoal barbecues, grills, and griddles Includes: handle, stone Refills #4580-581