High quality food grade silicone round coaster can be effectively insulated and easy to store. Each silicone coasters' diameter is 3.94 inch (10cm) which suits all commercial type of cups and mugs, making them the perfect size for holding coffee cups, kids' drinks, sports bottles, craft cocktails and tumblers. The backside provides a good firm grip, so your drinking glass will never slide. The premium unbreakable silicone material makes it easy to clean, you can clean it under the running water or just put it in your dishwasher. It has a variety of colors to choose from. It is an ideal promotional gift. We can print your logo on it. The prices for 13000pcs or over are based on ocean shipments.