Naturally edged, the 4" Slate Wine Coasters are perfect for any home. With subtle rustic elegance, these square coasters feature protective feet to protect counter tops and table surfaces. Made of pure slate, this appetizer / tasting plate lends an authentic, rustic appearance to your food presentation. It's also created to withstand both hot and cold temperatures. Set a mini cast iron dish of your signature dip right on the plate as it comes out of the oven, or place the tray in the refrigerator or freezer before serving cold appetizers and desserts.