AvecToi Set of 2 Food Grade Silicone Drink Cover, keep drinks warm & prevent bugs outdoor, FDA Approved (White) Seals tight on all smooth rims like cups, mugs and glasses. Airtight seal prevents spills Helps retain food temperature. Whether it's hot coffee, chicken soup, or iced tea, our silicone drink covers help maintain the temperature, freshness, and flavor of your cup's contents. So you have more time to savor what's inside! Microwave, Oven and Dishwasher safe.Eco friendly FDA Approved and BPA-Free Food Grade Silicone. Reusable, unlike plastic wrap Set of 2 with package; Perfect gift. 100% guaranteed high quality.