Exclusively designed for the Ozeri Collection of Earth Pans (Green Earth, Stone Earth and Stainless Steel Earth Pans), each pan lid is made of professional grade tempered glass and features a steam pressure-release vent. The transparent glass lets you monitor cooking progress without delaying cooking or losing moisture. Each lid is oven-safe to 392 F for the most demanding cooking and baking projects, and includes an insulating Bakelite knob handle that resists heating for safer handling. Dishwasher-safe and lightweight. Satisfaction Guaranteed.