1. SILICON GASKET 
These red patented silicon gasket can effectively seals pan to prevent greasy liquid or smoke from escaping during cooking. And it also acts to prevent leakages during flipping of the pan while cooking.

Note: Over the time, this silicon gasket might expand a little so you can just trim it off the excess and push back firmly onto the groove, but ensure it does not black the "steam vent". 

2. STEAM VENT
This allow excess steam to escape, maintain optimal pressure and cooking conditions inside the pan  and allow the meat to be evenly cooked.

3. OIL RECEIVER
It collects excess water or oil condensation which flow from "the upper pan" when the pan is opened.

4. GROOVED RIM
A grooved structure helps the pressure function of the pan by fitting the silicon gasket into the groove which seals and lock the pan. 

5. STAINLESS STEEL HANDLE HOLDER
It connects the handles to the pan.