AI says: This product is a 4" square ceramic coaster featuring the design of Patricia Brubaker Madeline Olives. The multicolor coaster is from the brand Centrum and is made of ceramic. It is crafted in China and comes as a single piece, perfect for adding a touch of style to any barware collection. With free shipping included, this coaster is a great addition for collectors or those looking to enhance their kitchen or home decor.