Enough numbers to share with and family, and participate in responsive ball games .Color reaction ball: Cool reaction ball adopts charming and novel mixed colors, which is not easy to fade, and can dazzling and dazzling sensory effects when rotating, which can attract people's attention.Solid material: The reaction ball is made of alloy and equipped with fine . The size is about 2.2 x 1.4 inches (approximately 5.6 x 3.6 cm). It is solid, light and portable, not easy to , and durable. You can with .Suitable for beginners: The reaction ball is suitable for most people, it can automatically return to hands, beginners can learn ; for experienced players, it is also a healthy and active game. hand flexibility: These colorful metal reaction balls combine games and imaginative thinking to help you your hands-on skills, from the of mobile phonesMaterial:alloycolour:MulticolorPackage Contents:5 x yoyo BallsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.