The Mauviel M'heritage M'250 lid is made of stainless steel lined, 2.5mm copper and features a sturdy iron electroplated finish handle fixed by stainless steel rivets. The Mauviel lid measures 16cm / 6.25 inches and is designed to fit the pans with that same diameter. These professional Mauviel cookware pieces are made in France with a lifetime warranty and are used by professional chefs around the world. The lid is designed to fit the pots and pans tightly. This lid is both beautiful in design and ever lasting.