NO MORE SPILLS AND STAINS ON TABLE: with these silicone coasters you will be able to relax and enjoy all the funny moments with your friends and family knowing all your countertops and furniture both indoor and outdoor will be safe from permanent damage. And with these special designed coasters it's impossible to stick to your glass. PERFECT SIZE & DEEP TRAY: The black coaster diameter 4.3 inch coasters can fit any large & small mug, cup or bottle. And the deep groove can holds water and you will never worry the water will drop on your legs or shirt when pick up your drinks. NON-STICK FRONT & NON-SLIP BACK: Designed with non-sticky 'buds' on the top to prevent your glass from sticking to the coaster. The backside provides a good firm grip, so your drinking glass will never slide. Drink your favorite alcohol, liquor or other beverage - beer, wine, whiskey, tropical cocktail, ice water, coke soft drink, coffee, tea or hot chocolate safe every day with these modern desk coasters. HEAT RESISTANT & DISHWASHER SAFE: Our drink coasters with holder are made of food grade silicone, non-toxic and BPA free and heat resistant from -40 to 260 degrees. They are very easy to clean, you can clean it under the running water or just put it in your dishwasher. MULTIFUNCTION COASTERS: The rubber outdoor coasters are not only a coaster You can use it as home decoration, spoon rest, barware set, bartender supplies or table pad, rubber jar opener, pot holder, silicone trivet, heat resistant grips and mats. Any other wonderful idea that you can think of is also great.