Using this silicone food cover will keep your food and drinks fresh and help you do a little bit to protect the earth. You don't need to reuse expensive plastic wrap, aluminum foil or other harmful plastics, this silicone stretch lids for food storage is reusable, environmentally friendly, reduces plastic waste and helps you save money. For the best seal, choose a lid that is 1-2 inches smaller than your container. The reusable silicone lid is made of food grade high quality silicone material. Package include: 6 pcs