Powerball Gyroscope
 

I picked up one of these the other day and it gives my forearms a burn like nothing else. I bring this thing with me everywhere I go and it's fun to see people try to figure out the motion and once they do it's even funnier watching the motion they make. I'm wondering how many people out there on TFP have one of these things? My high score so far is 11020.

What is it?

its a fore arm exercise device...
ive got one...

http://powerballs.com/

my high score is 10308

i just cant seem to regularly break the 10000 rpm barrier... its soo frustrating...