Balls for your hands
Stainless steel balls are particularly good for warming up your fingers and hands before practicing. By skillfully turning of two or more balls around themselves, the entire palm of the hand is massaged. It is important to have a comfortable size. Balls with a diameter of approx. 25mm are suitable for children's hands. For teenagers suite a size from 30mm, for adults with a averaged hand size the 40mm balls are suitable and 45mm ball are suitable for adults with big hands.
Warm, warmer, fit
>>Warm, warmer, fit<< describes more about the use.Turning should be practiced in both directions. It's best to start with two balls. The clue is: The balls should not touch each other during the turning process.