Coasters by Simple Coasters - The Best Drink Coasters and Bar Drink Coasters - These Coasters for Drinks Won&rsquo;t Stick to Your Glass - For Indoors or Outdoors - Great for Hot or Cold Beverages (Black) Flexible and Durable: These light weight coasters can take on hot or cold drinks. Great for indoors or outdoors Save Your Furniture, Some Time & The Planet: Protects your tables from ugly marks, is Eco-friendly, and dishwashers safe Coasters Stays on the Table Instead of Sticking to Your Glass: The smooth bottom provides a strong grip on most surfaces while the grooved pattern on top keeps your glass from sticking to the coaster Great Gift: House warming, off to college, new job, birthday, a promotion Satisfaction Guaranteed: If you are not satisfied with this purchase, we offer a replacement and/or a full refund to you.