Shock-resistant and drop-proof, more stable using aluminum alloy 6061 material + environmentally friendly plastic ABS material.The two spheres are , reducing the data tolerance to the stability of the sphere during rotation and prolonging the . 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 time. 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 performance, matching PC top finger cover is a spherical shape that specifically challenges the top finger.Name: Proud Dragon SoulSpherical: butterflyWeight: 68gDiameter: 56mmWidth: 42.8mmShaft width: 4.59mm: High-precision 10-ball Applicable moves: (1A, 3A, 5A)Colour: blue and blackMaterial: aluminum alloy + ABSPackage Contents:1 * yo-yo10 * rope (random color, 't accept the specified color)Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.