Welcome to the store! 1. Thin Ball Bearing: Professional yoyo toy features standard thin response ball bearings, providing it with stable speed and balance. 2. Aluminum Alloy: Yoyo ball for kids is made of premium aluminum alloy material, sturdy and strong, which can be used for a long time. 3. Improve Flexibility: The yoyo ball toy is suitable for beginners to advanced yoyo players, helping to improve coordination, flexibility, and strength. 4. Ideal Gift: Yoyo ball set can be used as a children's birthday gift for your kids, which is not only for daily entertainment but also for aerobatics. 5. Smooth Surfaces: The yoyo ball has undergone super smooth sandblasting treatment, the surfaces will never fade and are not easy to scratch, which is safe and durable to play with. Item Type: Yoyo Ball Material: Aluminum Alloy Size: Approx. 55 x 55 x 40 mm / 2.17 x 2.17 x 1.57 inches Suitable Age: 14+ Years 1 x Yoyo Ball 3 x Strings 1 x Storage Box 1 x Ball Bearing 1 x Ball Bearing Box 1 x Instruction 1 x Gloves