Mystery Lens - ID Needed

Anyone help me find some information on this lens, someone has asked me and is wondering what kind of camera it works with and if its worth anything etc...

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Sorry to be such a jerk, but:

http://lmgtfy.com/?q=t​ou%2Ffivestar+500mm

To be less of a jerk I will let you know the 4th result seems to have good info.

Thank you, I didn't know that was part of the name or brand or I would have googled that part, I did google just about every other part of the lens.

Thanks for not being a big jerk.