Premium Food Grade Material - These silicone lids are made of eco-friendly food grade silicone, 100% BPA-Free and non-toxic as well as odorless. Safe for touch with food directly and reusable. This will be a perfect replacement for your long-lost container lids as well as convert any regular bowl to an on-the-go container.Flexible & Stretchable Food Covers - This kind of silicone stretch lids are super flexible and stretchy enough to fit various shapes of food containers. Tip: Please clean and dry the edge of the containers & silicone lids before use (NO oil and water).Environmentally Friendly & Reusable - Using this kind of silicone food covers, you will no need to repeatedly purchase expensive plastic wrap. It is washable and easy to be cleaned. (Tips: dishwasher safe, but avoid using abrasive or force-foam cleaners.)Multi-useful & Super Practical - This silicone lid is ideal for storing leftovers, taking dishes to potluck, stacking bowls, unfinished drink, leftover fruits and vegetables. Very easy to create a perfect seal on glass, plastic or metal containers to keep food fresh.Easy to Use & Durable - The stretchable container lids rated -40 C (-40 F) to 232 C (450 F). Fridge and microwave use safe, not easily deformed and ensure long-lasting use. Each stretch lids embeds 5 grips around the edge for ease of use. You'll never regret to choose this flexible food lids!