PCGS 2000 5c Jefferson nickel aluminum feeder finger. The feeder finger has the date "Feb 2000" and denomination "5 ct" printed on it. Additionally, it has the manufacturer of the feeder finger "Arrow" (which is short for "Arrow Tool", a company that manufactured feeder fingers for the Mint.)

The feeder finger is made of aluminum, and has a slightly darker outer surfaces. Interestingly (although not surprisingly) this exactly matches the examples of coins struck on piece of feeder finger! 

Feeder fingers are used by the Mint for placing the unstruck planchets between the dies for striking. The feeder finger receives the planchet in the coining press, and then moves it into place between the dies.

Feeder fingers sometimes are known to be struck, and although rare, examples are known struck on the "tips" of the feeder finger (the two smaller parts that are "right/left" on the end of the feeder finger.) Feeder fingers are often made of a soft metal such as aluminum, as is the case with this feeder finger, so that if the dies accidentally strike it, the dies likely will receive little or no damage. 

Feeder fingers of this aluminum, modern era type are very rare. There are probably around 12 unstruck examples known for ALL denominations combined. 

The coin is slabbed by PCGS in a giant, oversized holder (which is quite impressive!)