Swiss Diamond tempered glass lids offer a mix of durability and convenient visibility into what you're cooking. Fits Swiss Diamond items with an 11" diameter but may work as a lid with many other pieces with a 11" or 28cm diameter. Beneath the knob of the Swiss Diamond glass lid is an adjustable integrated steam vent - rotate the knob to open and close the steam vent. Oven safe to 500F/260C. Dishwasher safe but hand washing reommended. Some of the items this lid is designed to fit: 11" fry pan, 3.7 qt sauteuse, 5.3 qt. braiser, 4.3 qt saute pan, 8.5 qt stock pot.