American Olean Windmere 18 x 18 Matte Glaze Ceramic Tile The American Olean Windmere 18 x 18 Matte Glaze Ceramic Tile offers a bold and spacious design that elevates any interior. Its large square format and matte glaze finish create a clean and elegant look suitable for a variety of applications. Durable and low-maintenance, this tile is perfect for both residential and commercial spaces.