New reinforced and deep tray design: The coaster is 7mm thick, and the deep rim can contain more water, juice, and liquor spills from your cup. [Diameter: 3.9 inches/10 cm.] Large size suitable for all standard cups or tumblers, also sufficient for large jars, bottles, glasses, or tumblers such as mugs, bourbon glasses, cola bottles, and carafes. Non-slip surface on the bottom and non-stick surface on top: Double-sided design, available on both sides. The grooved pattern retains liquid to prevent leaks. The increased corrugation promotes airflow to prevent the coaster from sticking to glassware. Relax and enjoy yourself with family or friends at home, indoors or outdoors; Anywhere in the kitchen, bedroom, living room, ballroom, at weddings, parties, libraries, restaurants, offices, bars, pubs, and on the beach. Maximum furniture protection: These absorbent coasters for indoor and outdoor use can be used on any type of table, such as wood, granite, glass, bamboo, soapstone, sandstone, marble, stone tables, etc. Protect the surface of your kitchen counter, desk, or bedside table from unsightly stains or scary scratches. Long-term use, heat resistant, and dishwasher safe: The coasters are made of flexible, food-grade silicone. Heat resistant from -40°C to 249°C, they can be used for hot or cold drinks on any occasion. Enjoy your favorite spirits, liqueurs, fruit juices, or other beverages, such as beer, wine, whiskey, tropical cocktails, iced water, refreshing cola, coffee, tea, or hot chocolate. Versatile Uses and Offers: These multi-purpose coasters can be used as small coasters, trivets, spoon rests, kitchen placemats, even as furniture feet, or as floor protectors for chairs and tables at home. They also make excellent professional bartender accessories, bar table sets, and absorbent bar mats. If you have any questions, we will help you solve the problem.