Intended for use as a food and container cover for refrigerator or freezer;Reusable food saver, eco-friendly alternative to plastic wrap;Stretches, clings and form fits to fresh cut food, dishes and containers;Hand wash only, not microwave safe, EU/FDA food safe Sticky RubberTM, BPA/Phthalates free;Contains of 1 of each of the 4 sizes, fits up to 12