The Course Travertine Series features a unique texture that can be grouted for added realism. The set includes fi ve styles: a Seamless Texture, Tumbled Travertine Ashlar Versailles, Tumbled Travertine Herringbone Paver, 12x12-in. Tumbled Travertine Tile, and 18x18-in. Tumbled Travertine Tile. With a tumbled edge to the stamps, the surface remains fl at with all the texture recessed, allowing the option of leaving the surface unsealed for a more natural look and to reduce slippage, ideal for pool areas. Proline Concrete Tools. 800-795-4750.