Daltile Windowsills and Thresholds 6" x 36" Polished Marble 3/8 Double Bevel Threshold creates a smooth, luxurious transition with its polished marble surface. This 6" x 36" threshold features a double bevel design that adds a high-end finish to any doorway or entryway. The polished marble offers both beauty and durability, ensuring that your home or commercial space maintains its sophisticated style for years. This threshold is perfect for enhancing the transitions between rooms or from indoors to outdoors, creating a seamless and stylish edge.