The tenderloin is most tender piece of meat you will ever have the pleasure of biting into. It is soft, juicy, and flavorful without needing anything more than a simple salt and pepper seasoning.
These are medallions, about 2 inches thick. They are 1 per pack. The different sizes are because of different animals.
A yak tenderloin, known as an eye fillet in Australasia, filet in France, filé mignon in Brazil, and fillet in the United Kingdom and South Africa, is cut from the loin of yak.