Feature(may vary by option.)

●Compact design: small and flexible, can be taken anywhere - perfect for short training on the go, it remains efficient, safe and quiet during training.
●Operating principle: thanks to a concentrated and dosed movement of the l in the hand, the rotor can be "put on tour": the higher the speed, the heavier the hand trainer becomes due to the resulting forces
●Fitness devices: unlike traditional gyroscopic hand exercise balls, auto start technology, no batteries and rope required, so you will never worry about losing the rope
●100% vibration free and shatterproof: thanks to the precise rotation, no annoying vibration occurs during training. The stability and break resistance is maintained by the sturdy plastic housing and the robust stainless steel axle. The LEDs light up the more intensively, the faster the rotor rotates
●Widely used: Regular use of this is a perfect training of the gripper for athletes who rely on strength in the hands, but also musicians and people who work a lot with a keyboard, training prevents discomfort such as carpal tunnel syndrome, RSI (repetitive strain injury syndrome), tennis and golf arm or tension in the arm, neck and shoulders. before before

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