The Charles Viancin Silicone Lid is the easiest and most stylish way to seal any bowl, pot, pan or vessel. It prevents spills and traps heat by creating an airtight, watertight seal. FDA-approved silicone lid helps you save on plastic wrap and tinfoil. Works perfectly on all smooth rims: stainless steel, glass, melamine, and plastic. Freezer, oven, microwave, and dishwasher safe.