For the sake of a better use, please keep contact surfaces are smooth and drySafety Made of 100% food grade silicone, heat resistant, non toxic, bpa free
Environmentally friendly Unlike plastic wrap, baggies and other disposable storage items, these can be used over and over
Durable They are made of durable, heat resistant silicone that won t tear even after frequent use. They will retain their shape and ability for many years, and they are easily washed when dirty
Ovenproof and freeze proof You can put them in the microwave, oven, refrigerator, freezer and dishwasher because our lids have a temperature range between 46f to 460f 40c to 230c