This is the Mini MEK, a smaller version of the original with a solid 2 finger grip for lighter tasks.
This is some old material manufactured by the Vultee Aircraft Company towards the end of WWII. The unique color of this material come from decades of aging and oxidation, like all vintage material this stuff is in short supply and when it is gone it will be gone for good.
The MEK pictured is the exact one you will receive, be sure to select your choice of sheath color, belt loop, jimping, and optional lanyard bead from the drop-down menu. Each of my beads is made by hand and unique but if you would like to choose something specific take a look at some of the options I have available here or contact me for a special request.