Charles Viancin® products are food-grade safe and BPA free which is integral to our health. Materials & Additives used exceed European (LFBG) and US Food & Drug Administration (FDA) and Japan Polyolefin Hygienic Association food standards. Made from the highest quality food grade silicone for Baking, Steaming, Cooking and Reheating.For cooking, our lids are great to use as splatter guards or use as extra lids for the stove top, steaming in the microwave or for baking in the oven. To keep food fresh for longer and seal in heat during cooking.Microwave and Oven safe up to 428F/220°C and freezer safe down to -40F/-40°C. Dishwasher safe or hand washable. Dimensions - Ø 17 cm