MULTIPLE USES: These versatile silicone coasters can be used in any scene, It can be used to open very tight and strong can lids and and can also be used as professional bartender supplies, bar tableware table sets, bar mats, etc. DEEP TRAY DESIGN: The thickening coaster's thickness is 0.2 Inches, at the same time, the deep hem design can hold more overflow of water, juice and liquor from the cup. will prevent any burns or freezing, Diameter 4 Inches. Furniture Protection: Protect your kitchen counter top, desk or bedside furniture from surface scratches.can be used on any material table type, such as wood, granite, glass, bamboo plastic, soapstone, sandstone, marble, stone tables, etc. Non-slip bottom: Striped grooves promote air circulation and prevent the coasters from sticking to glassware, no matter in any scene such as kitchen, bedroom, living room, ballroom, wedding, party, library, restaurant, office, bar, pub and beach. HEAT RESISTANT : enjoy your favorite alcohol, liquor, fruit juice or other beverage, like beer, wine, whiskey, tropical cocktail, ice water, coke soft drink, coffee, tea or hot chocolate. The drink coasters are made of food grade silicone. Heat resistant range from -40F to 480F, can be used for cold or hot drinks in any occasion.