【 OVEN SAFE & FLEXIBLE SILICONE MOLD 】: Lerykin silicone molds are made of 100% Food Grade silicone, BPA free, Non-toxic, heat-resistant can withstand temperatures ranging from -40°F to +446°F (-40℃ to +230℃), it's safe for the oven, microwave oven, freezer, refrigerator & dishwasher.