Made of tough tempered glass with a stainless steel rim to prevent chipping. The clear glass also makes it easy to check on your food as you're cooking!. With a steam vent and heat-resistant bakelite handle, this lid is oven safe up to 180 degrees Celsius (356 degrees Fahrenheit). MasterClass's high-quality glass saucepan lids are also available to fit 24cm (9.5"), 26 cm (10") and 28 cm (11") pans. Highly durable - Dishwasher safe and protected by MasterClass's 5-year guarantee. MasterClass 20cm Glass Saucepan Lid in Clear