Invented in Germany, this lid will change the way cooks boil. Overboiling while cooking is a problem everyone has, and with this ingenious silicone tool it won’t happen any more. Just place the lid on any pan with a diameter of 6" to 10" with flower facing up. Lid is heat resistant to 400°F. Limited lifetime warranty covers product repair or replacement only. 12" diam. Dishwasher and microwave safe.