Item: PowerballMaterial: Plastic、 silicone rubberColor: Blue and orangeBall diameter: 7cmWeight: 0.25kgBall rotation fastest power: 12000 rpmFeatures:1. Powerball will light2. Powerball by the housing + rubber sleeve + inner core constituted3. In the Sound、 the Powerball in the axial balancing device is added、 low noise4. High-quality steel axis、 high stability、 not brokenInstructions:1. Hold the Powerball2. Insert the wire into the ball hole3. Strong wire wrapped well、 the rotational direction of the winding installation4. fully pull out the line、 the ball begins to turn5. Finally 、catch the ball、 opening down、 moving the wrist in a circular motion、 continue to maintain the same rotation of the law、 and slowly increase the rotational speed.Package list: 1*Powerball