Description One of Proline’s new Tumbled Travertine patterns is this 18″ x 18″ square tile pattern. This addition to the Proline collection is unique because it showcases a texture that can be grouted. The tiles have a tumbled edge. A flat surface with all the texture recessed gives this pattern a Travertine appearance and allows the concrete to go sealed or unsealed for a more natural look. Additionally, we offer the 18″ x18″ Tumbled Travertine Square Tile Package that includes the Proline Recommended Stamping Tools and a selection of Accessories needed for your project at a package savings.