The Instant Pot glass lid can be used instead of the pressure lid when slow cooking, sauteing / browning or using the keep warm function Colourless tempered glass, large Stainless Steel lid knob. It has a steam release vent to reduce condensation on the underside of the lid It is dishwasher safe and can also be used on the stainless steel inner pot in the oven up to 220c It is 23cm (9 inch) in diameter and designed to fit the 5.7L size of Instant Pot Lux, Duo or Smart cookers. Instant Pot is the No1 selling brand of electric pressure cookers in the US