Product Description The two spheres are consistent, reducing the data tolerance, thus ensuring the stability of the sphere during rotation, extending the sleep time, and suitable for 1A/3A/5A moves. The unique 10-ball U-shaped shaft adopts high-precision bearings to reduce the functional wear of the yo-yo, and achieve more fancy and action. Using secondary oxidation technology, superb process design, superior performance, matching PC top finger cover is a spherical shape that specifically challenges the top finger. Diameter: 55.9mm Width: 42.3mm Shaft width: 4.59mm Bearing: High precision 10 balls bearing Recycling Sticker: Silicone Surface treatment: bright surface Screw specification: M4 x 16mm Material: Aluminum Alloy + ABS Package Contents: 1 x Yoyo Only the above package content, other products are not included. Note: Light shooting and differnent 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