The Professional Yoyo Ball is designed for competitive play, featuring high-quality construction for optimal performance. It's the perfect yoyo for boys who are serious about yoyo competitions and want to enhance their skills. The sleek design and durable build a for yoyo enthusiasts of all levels. It features a durable and smooth design, making it suitable for professional yoyo tricks and performances. this yoyo features a high-quality ball bearing for extended spin times and ease of use. size: 5.7 x 4.3 x 5.7cm Material: Aluminum alloy colour: Black Package Contents: 1 x Yo-Yo 1 x Chinese and English instructions 1 x Ball Rope 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.