The Powerball – for individual and effective hand training. The Powerball is a gyroscopic hand trainer that operates entirely without batteries, based on the principle of centrifugal force. The rotation ball is set in motion purely by muscle power, which has the significant advantage of adapting to your training level. As an advanced user, you can achieve up to 16,000 revolutions per minute. Depending on how you hold the hand trainer, you can strengthen different muscle groups.

More comfort with the Powerball AutoStart. The Powerball AutoStart is additionally equipped with a rotor that allows for easy starting without a cord. This is especially beneficial for beginners, who no longer need to struggle with the starting process.

Product details:

• Weight: approx. 250 g
• Material: Plastic, rubber edge
• Diameter: approx. 7.5 cm
• Product type: Wrist trainer.