Powerball, the gyroscope ball that packs Power – Available from NSD Powerballs
Using Powerballs will increase wrist and grip strength

NSD Powerball Wrist Strap

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Price: $2.99

The Powerball Wrist Strap attaches to your Powerball to secure it to your wrist during use, preventing any drops and consequent damage.

The Powerball Wrist Strap attaches to your Powerball to secure it to your wrist during use, preventing any drops and consequent damage.

Note: Wrist straps are already included with Powerball Techno and Powerball Signature.