MFB Sniper Compass???

[/size]Okay, I've been browsing through several shopping sites ( ebay, theintoy, etc.) for MFB items and I spotted an item called the sniper compass. I have seen it before on the anime from the guy who owns the Capricorne, but I am wondering what it does and how it works.


any help...please.
http://worldbeyblade.org/Thread-BB-49-Angle-Compass

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