Shock-resistant and drop-proof, more stable using aluminum alloy 6061 material + environmentally friendly plastic ABS material. The two spheres are consistent, reducing the data tolerance to ensure the stability of the sphere during rotation and prolonging the sleep time. It is suitable for 1A/3A/5A moves. The ball arm gradually forms a V shape near the center axis, and the tilt reduces friction, which makes the ball idling for a longer time. The unique 10-ball U-shaped shaft adopts high-precision bearings to reduce the functional wear of the yo-yo to achieve more fancy and action. Using secondary oxidation technology, exquisite craftsmanship, superior design performance, matching PC top finger cover is a spherical shape that specifically challenges the top finger. Name: Proud Dragon Soul Spherical: butterfly Weight: 68g Diameter: 56mm Width: 42.8mm Shaft width: 4.59mm Bearing: High-precision 10-ball bearing Applicable moves: (1A, 3A, 5A) Colour: blue and black Material: aluminum alloy + ABS Package Contents: 1 * yo-yo 10 * rope (random color, don't accept the specified color)