The 6.5" flat glass lid is made from impact resistant glass. It features a side slot 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. The flat lid is made to be stacked in a refrigerator turning any vessel into a storage container for convenience. It fits both the 1.5 quart. Saucepan as a replacement lid,. it is dishwasher safe, is made in France and comes with a limited lifetime warranty.