Health and SafetyCertified and Sustainable Our lids are tested and certified according to German standards, 100% BPA-free - and plastic-free, the clever alternative to cling film and aluminum foil. Thicker version: Weight: 0.35 kg.Multi-size for multi-function: A total of 13 pieces per set (7 round + 6 rectangular), which can cover containers of various shapes and sizes, including: Salad bowls, glass, glass, food, can, cans, cups, juice caps, pots, pans, watermelon, pineapple, melon or other fruits and vegetables.Keep Food FreshThe sustainable way to keep food fresh and stored. An airtight seal keeps the food fresher for longer and protects it from leaking. The lid as well as the edge of the container should be dry only before the attachment. The silicone stretch lid is better than with plastic wrap.Reusable & Easy to Clean Made of high quality silicone, soft texture, durability, with super wear resistance. The use of the temperature range -40 ~ +240, suitable for dishwasher, refrigerator, microwave oven, electric oven can be used. But you'd better not completely seal containers when using in microwave or oven.100% satisfaction guarantee We stand by our products. We offer a 3 year guarantee. If for any reason you are unhappy, 100% of your money will be returned.