The Food Guard is a 446°F heatproof, stretchable, stackable, washable, reusable, environmentally friendly, time- and money-saving food lid that stretches and molds to any-sized food container, plate, bowl, dish, pan or storage medium. Made from BPA-free platinum grade silicone, this lid is 100% safe for your food stock. The Food Guard eliminates the need to replace lost lids, waste time finding the right lid for the right container or worry about finding a microwave or oven-safe lid when cooking. The Food Guard material is a unique one. It is similar to what silicon cupcake trays are made from but is a little more 'sticky' so that it can grip and create airtight seals around containers, making sure the food stays fresh and flavorsome.