The 18 x 18 Old Granite Tile comes in an A or B stamp. Granite is a plutonic rock of the Earth's crust, formed by the cooling of magma. Proline offers this highly natural looking Old Granite Cleft Stone in a 18″ x 18″ square tile pattern. Old Granite is easily characterized by veins running through the pattern. Looking for a matching Band Tool? Check out our BT300- Soldier Course Granite Band Tool. Proline also offers the following tile sizes in the same Old Granite texture: 12″ x 12″ ( ST1230 & ST1235), 24″ x 24″ (ST2400) & 36″ x 36″ (ST3600). Please note: For a random look, this stamp is made to work in conjunction with ST1810B.