The Pyrex/Corning Clear Glass Round Lid has an 8 3/4" interior diameter, making it compatible with both gas and electric stoves. It is marked "Mexico 13". The one-piece lid is transparent, allowing for easy monitoring while cooking. Made of glass, this round lid is durable and will not scratch or chip easily. It is specifically designed to fit a round pot or pan with the same diameter, providing a secure and airtight seal to help retain heat and nutrients during cooking. There are no chips.