Our Plaques can be used for a kitchen back-splash, pool tiles, and bathroom tiles, hung on walls indoors or outdoors, in cold or hot climates. The clay body is porcelain and stoneware, so the piece is incredibly durable. The glaze finish is the highest quality glaze we can obtain in the USA, so the weather will not affect the shine/luster, or the brilliant hues. The glazes are also non-toxic, which allows you to eat off and serve with them