unresponsive yoyo made from high quality material, stable and balanced high speed routines. Super smooth sand blasting finish 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 longer service life. Elegant gift package for this alloy yoyo, which is a for your kids, families and friends. Recommended for kids daily practicing or competition. Spherical: Butterfly Material: aluminum alloy color: black Weight: 66.8g / set Diameter: 56.8mm Width: 42.7mm Wheelbase: 4.4mm Bearing: 10 ball bearing Package Contents: 2 x ball 2 x Gloves 2 x Narrow bearing 10 x rope (random color, no designation accepted) Only 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.