Hi all..
what are the difference between these powerballs?? I am in the US and I can only find ******** powerballs.. I bought an amber version powerball plus NSD speedometer.. I can clock it about 10,500-11,500 RPM within 1 day of trying.. I would love to try the RPM Powerballs as well as NSD Powerballs..
Who were the first inventor of this great device??
THANK YOU THANK YOU
Jet Li


Reply With Quote
Bookmarks