Material: Food grade silicone, non-smell, non-toxic. Features: Reusable molds with novel design, soft texture, all-matched style, easy to release and clean. These molds are safe used in oven, microwave oven, freezer and dishwasher. Can be used to make cakes, soaps, puddings, chocolates, candles, jellies, aromatherapy stones and other crafts. Temperature safe from-104 to +446 degrees Fahrenheit (-40 to +230 degrees Celsius).