Silicone Suction Lids and Food Covers - Set of 5 - Fits Various Sizes of Cups, Bowls, Pans, or Containers! Set of 5 silicone suction lids to fit various sizes of cups, bowls, pans, or containers. Set includes one of each - 5in, 6in, 7in, 8in 10in Suitable for use on all smooth surfaces: plastic, glass, stainless steel, melamine, and ceramic. Creates an airtight, watertight, and spill proof seal for reheating and storing. Creates an airtight, watertight, and spill proof seal for reheating and storing. Environmentally friendly: washable and reusable. Easier to use than plastic wrap: just press down to create the perfect seal. FDA Food Grade Silicone - Microwave, oven, freezer, refrigerator, and dishwasher safe!