Charles Viancin has created a collection of cooking products inspired directly by the beauty and clever complexity of nature. These elegant, French-designed lids create an air- and water-tight seal on all smooth rims, making them ideal for cooking, baking, reheating and even storage. These universal lids are made from durable, BPA-free food grade silicone. Because they are safe at high temperatures, they help to prevent splatters and retain steam during cooking. They are also ideal to help keep dishes and beverages hot or cold longer. Reusable silicone means no more wasting or struggling with plastic wrap or aluminum foil. The lids are dishwasher safe for easy cleanup, heat safe to 428 degrees F for use in the oven or microwave, and cold safe to -40 degrees F for use in the refrigerator. Made in China.