Powerball
This is an NSD Powerball, a handheld gyroscopic exercise machine for your hands, arms and fingers.
It spins really fast as you rotate your hand increasing the force you have to exert on it, thereby exercising your muscles. Plus it lights up more the faster you get it to spin. I can manage about 9000rpm sometimes.
488
views
- 0
- 0
- Canon PowerShot A520
- 5
- f/8.0
- 6mm
Comments
Sign in or get an account to comment.