Super wide range of heat resistant from -40 degrees to the high temperature of 480 degrees Fahrenheit and containers are made of 100% food-grade non-stick silicone, dishwasher safe, reusable.Easy to use and clean, freezer microwave dishwasher safe.Bounceable, use it for storing lip balm, spices, wax, painting, cream and many other usages.All of our containers and silicone products are manufactured with the highest quality cured silicone.