Daltile Windowsills and Thresholds 2" x 36" Polished Marble 3/8 Double Bevel Threshold adds elegance and a luxurious touch to your home’s entrances. This 2" x 36" polished marble threshold features a double bevel design, providing a refined transition between rooms or from indoors to outdoors. The marble surface offers timeless beauty and durability, perfect for areas that require high-end finishes. Whether used as a doorway threshold or windowsill, this polished marble piece enhances your space with its sophisticated design and lasting quality.