Daltile Windowsills and Thresholds 4" x 36" Polished Marble 3/8 Double Bevel Threshold offers a luxurious, durable solution for transitioning between spaces. This 4" x 36" polished marble threshold features a double bevel edge that creates a sophisticated and smooth transition from one room to another. The marble finish adds timeless beauty to any interior, making it ideal for doorways, windowsills, and other architectural elements. With its durable construction and elegant design, this threshold ensures that your home’s details are as polished as the rest of your décor.