It works just like a lid, only it has a major bonus: you can just set your pot to boil and then walk away without having to worry about it spilling over.
Material: Food Grade Silicone
Size: Diameter 28.5cm **The diameter of most pot on market is only 25.0cm**
Material: Food Grade silicone
Color: Red / Green
Item size: 28.5cm (Diameter)