What is this soft plastic?

[LipRipperDre]

To make things short, I recently purchased an assortment of hard and soft plastics and found these single claw, craw like lures. No clue what brand. No clue how to work it. No clue how to hook it. Just want to get your thoughts on it.

[pawpaw]

It looks like a deformed, incomplete portion of a Zoom Critter Craw. Other than that I got nothin.

[Bluebasser86]

Looks like a cross between a plastic shrimp and a craw? Looks like it's probably a home brew. 

["hamma"]

it goes on a jighead, rig it like this,...Half way down the tail, as it curls under insert the jigs hook and push up towards the head, As to leave the swimtail under the jig.

 I had some of these back in the early 90's but forget what company that made them,.I wanna say arkie, but not sure.. Mine were a very dark brown color and worked well on gravel bottomed flats with slight weeds for smallies

[scaleface]

I have some  , never used them .