The 5.5" domed glass lid is made from impact resistant glass. It features a center knob that can also accept a detachable long handle so you never need an oven mit or glove to check on foods in a hot oven. It fits both the 1 quart. Saucepan as a replacement lid, and the 1.5 quart. Milk pot to add extra versatility to this vessel. It is dishwasher safe, is made in France and comes with a limited lifetime warranty.