Function 4 is an innovative and functional cooking range by WMF. The red silicone ring, which is the most substantial part of the lid, gives Function 4 its four individual pour characteristics. The lid can be set to allow free pouring, to reveal small or large openings or to close the spout completely. Additionally the lid can be placed on the pot silently. Further the Function 4 pots entail all WMF quality features such as cool touch handles, an index scale and the Trans-Therm® bottom.