what is this plastic bait lure called and how do you use it? and is it used for bass?

here is a pic I hope someone can help me out .had someone give me like 20 of these things.

Looks like puddle jumper

Yeah, it looks like a puddle jumper.  The little curl at the end of the legs make me think that it is some puddle jumper knock off, where they changed it just enough so that they wouldn't get sued.  How long is it from end to end?   All all the puddle jumpers I've seen were 2" or less end to end, more of a crappie sized bait.  

 

Is it flat on the other side?   If it was, that would lead me to believe that it is some one's hand pour.  Is there a name some where one it.   Many companies put their name in the mold some where on the bait?   It is a mystery.  I really don't know who made it.

I got a bunch of those in a Cabela's crappie kit lije 10 years ago and used to KILL the panfish with them; have never seen them sold separately however and no idea what they're called.