Daltile Windowsills and Thresholds 6" x 74" Polished Marble 5/8 Double Bevel Windowsill is the perfect finishing touch for any window. This 6" x 74" windowsill features a 5/8" double bevel edge, offering a smooth, elegant look that enhances your home’s interior. Crafted from polished marble, this windowsill is both durable and timeless, making it a long-lasting addition to your windows. Whether used in a traditional or modern setting, this windowsill adds sophistication, while its polished surface ensures easy maintenance and lasting beauty.