High food-grade silicone: BPA free, eco-friendly recycling, silicone material. No strange smell, safe for baby. Our extra thick silicone covers are durable and will not tear or warp.^ 12pcs & 6 different sizes: silicone stretch lids comes in 6 pcs round clear lids and 6 pcs blue retangle lids allowing you to fit almost all of your dishes, bowls, cans, jars and containers that can be covered ^ Super practical and easy to handle: stretchy lids fit directly over bowls, jar lids, and hot food items themselves, helping you avoid a container transfer. Please NOTE: Due to the material nature of the silicone, to avoid slipping, make sure that your hands and the outer edge of the bowl and the silicone covers are perfectly dry (NO oil and water) during operation. It is not suitable for sharp objects.^ reusable lids is the good replacement for the disposable Plastic wrap film. With our reusable silicone lids you have an easy and durable solution and don't need to worry that the films can't adhere well on the bowls. Stop using the Disposable plastic wrap to protect our ecosystem.^ Dishwasher and freezer safe: Put silicone food cover in the dishwasher and refrigerator, the elasticity of cover remained the same. Be sure to watch the video operation carefully before use and follow the steps strictly. Waterproof & Stackable, perfect for fridge storage.^