Help Identify

I'd Like to Know:

I would like to know what this is specifically, I would also like to know what it goes to, what it does, what it's used for and who manufactures it. Thanks.

Item History: N/A

Size: It is 17-1/2" in overall length, its widest diameter is approximately 3-1/8" and its smallest is 1-1/2" in diameter.

Markings: Other than the small card that came with it, there are no markings.