Enough numbers to share with friends and family, and participate in responsive ball games together. Color reaction ball: Cool reaction ball adopts charming and novel mixed colors, which is not easy to fade, and can present dazzling and dazzling sensory effects when rotating, which can easily attract people's attention. Solid material: The reaction ball is made of alloy and equipped with fine ball bearings. 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 break, and . You can with confidence. Suitable for beginners: The reaction ball is very suitable for most people, it can automatically return to hands, beginners can learn easily; for experienced players, it is also a healthy and active game. Improve hand flexibility: These colorful metal reaction balls combine games and imaginative thinking to help you improve your hands-on skills, away from the fun of mobile phones Material:alloy colour:Multicolor Package Contents: 10 x yoyo Balls 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.