Majik Tutorial: Cast Iron Skillet

 From:  Mike K4ICY (MAJIKMIKE)
Aw, heck yah!!

It's the Flare with Fin-X (not to be confused with Finex) Technology from a company called Lakeland.

The heat sink built into the bottom of these pans are designed to better transfer rising heat while better ducting the heat along the pan's surface.
Hopefully the inside surface is smooth, because I imagine it would be a nightmare to clean burnt food from inside of those grooves.

It's worth a model.