Feature: 1. Exercise Hands on Ability: This yoyo ball can well cultivate children hands on ability, make them good at thinking about problems, and cultivate their ability during play. 2. Stay Stable: Yoyo ball with premium performance, U shaped unresponsive bearings ensure stability and balance and high speed rotational movement. 3. Competitive Experience: Yo yo is not only very interesting, but also brings a different competitive experience to children and stimulates children fighting spirit. 4. Colorfast: The black surface is treated with double color anodizing, which not only looks more textured, but also makes the surface never fade and not easy to scratch. 5. Durable: Our aluminum yoyo ball is made of high quality alloy material, the ball is not easy to be damaged when used, and the quality is guaranteed. Specification: Item Type: YoyoMaterial: Alloy .Size: Approx. 5.3 x 5.3 x 4.1cm / 2.1 x 2.1 x 1.6in Suitable Age: 14 above years old Package List: 1 x Yoyo1 x Gloves1 x Plastic Box1 x Chinese and English Manual1 x Replace Bearing2 x Gasket3 x Yoyo Strings