Activate by pushing the core in the arrow's direction - the internal spring does the rest! Simple and convenient, with funky colors as the gyro rotates. Perfect for killing time and relieving soreness, with no more annoying vibrations. Take this compact device anywhere and strengthen your muscles. A must-have for circulation and muscle power!
Automatic start
7x5.5cm
Power: Generates weight of up to 61 kg
5-colour LED light: each colour represents a different level
Multifunctional Gym, tennis, square, cycling and rock climbing
How to use the wrist ball
Step 1: Rotate the gyro ball in your hand until it reaches the elastic core position.
Step 2: Squeeze the wrist ball firmly, then let go of the spinner quickly. It will spin at a rate of 1500 to 3000 rpm. While keeping your wrist moving, gradually lower your hand to continue the gyro ball's momentum at or above its initial speed.
Step 3: Feel the synchronously increasing reaction force of the rotating gyroscope on your wrist and arm as you increase your core speed.
