What is a HMS Beyblade???

I do not know what a HMS Beyblade is. I collect the plastic ones from North America. So could someone please tell me what is the difference. And which is used most in tournaments??
You realize that Hasbro doesn't design Beyblades, they just release ones that were released in Asia that were designed in Japan, right?

Anyway, learn to use Beywiki:

http://wiki.worldbeyblade.org/index.php/HMS

Hasbro released these, as well.
This forum is for questions about the website ... Seriously ...