Aluminum alloy material, lightweight and flexible, with more stable shock resistance and drop resistance, using aluminum alloy 6061 materialThe two spheres are , reducing data tolerance, thereby ensuring stability during the rotation process of the spheres and extending . The 1A/3A/5A technique is suitableThe ball arm gradually forms a V-shaped tilt near the center axis to reduce friction, making the ball idle for The 10 bead U-shaped shaft adopts high-precision bearings to reduce the functional wear of the yoyo ball and achieve more tricks and movementsSuperior performance, matched with a PC top finger cover, is a spherical shape specifically designed to challenge the top fingerDiameter: 55mmWidth: 42mmShaft width: 4.59mmBearings: high-precision 10 Recycling sticker: yellow siliconeSurface treatment: bright surfaceScrew specification: * 10mmColour:black+purpleMaterial:aluminum alloyPackage Contents:1 set x yo yoOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.