Annic 6 Pack Silicone Stretchable Lids, Reusable and Durable Made of premium silicon , they are stretchable reusable and durable. Food Grade material and BPA Free. These silicon lids are so nice and versatile that can create a air tight seal on anything you put this over. Such as fruit, cans, jars, bowls, etc. your food will keep fresh longer with these perfect silicon lids. Durable and reusable : Can be used over and over again without tearing or warping. These also heat up to 450 degrees, so you can microwave that dinner plate with one of these on it and no worries. These super stretch silicone lids will stretch almost 30 % of its original size, which are flexible to fit most container sizes and shapes. Also can be used to seal a cut watermelon, apple, half a can of soda or any tub that you want to reseal. They are very pliable and easy to attach to the top of any container and they really provide a strong seal and don't leak. Easy to clean and dishwasher safe.