YoYo for a beginner?

Okay guys I just got my velocity and everything looks great I just have one question what are these things? http://img21.imageshack.us/img21/6851/image00002ueg.jpg
Sorry its such a bad quality picture. But I got these two round clear things… Does anyone know what these are? I jut wanna make sure they aren’t essential before I put on my string

EDIT:: Better quality picture:

http://img19.imageshack.us/img19/900/image00007k.jpg

I think those are parts for velocity.  :-\

Happy Throwing! =]

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;D ;D ;D
Exactly what i’d say… but i’d say it short and bad spelling. (PSSTT- He’s an eXpert… he knows his stuff)

Those are the rubber dials that come with the Velocity. You will notice in your Velocity, you have the plastic ones, however if you take those out and put the rubber ones in, you can make the yoyo more unresponsive and bind better.

Yeah, that’s what I thought Samad.

Happy Throwing! =]