Item as described
30 Nov, 2002
6 of 8 people found this guide helpful.
NSD Powerballs - The Complete Guide
Pro Powerballs have an LED RPM counter attached to the top which counts the number of spins, fastest speed acheived and so on. Great for measuring progress or competitions. The 250Hz versions come in blue and amber.
Neon Powerballs have flashing LEDs which glow when the powerball is spun. Neon Powerballs come in a variety of colours: Blue, Red, Green and White. They also come with counters - Neon Pro, or without Neon Regular.
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