Unresponsive yoyo made from aluminum alloy material, stable and balanced high speed routines. Super sand blasting finish surface never fade and not easy to scratches. The butterfly sphere design increases the centripetal force during rotation by increasing the edge weight High precision shaft is adopted for faster idling and service life. Elegant gift package for this alloy yoyo, which is a perfect gift for your kids, families and friends. Recommended daily practicing or competition. Spherical: Butterfly Weight: 65.1g Diameter: 56.8mm Width: 42.4mm Wheelbase: 4.6mm Material:Aluminum alloy colour:Black Package Contents: 1 * ball 1 * 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.