Proper Size for Students: With a diameter of 120mm, this Diabolo Chinese Yoyo is suitable sized for students, making it easy to handle, It's designed to be friendly, especially for beginnersStable Double Bowl: Featuring a double bowl structure, this Triple Bearing Diabolo offers stability and extended turn time. It's ideal for both beginners and those looking to advance their skillsMaterial: This Diabolo Toy is Made from hstrength PP that is not only visually appealing but also sturdy. It is specifically crafted to cater to children and beginners, ensuring a long time play experienceSuitable for All Ages: This Chinese Yoyos Juggling Toy is suitable for children, teenagers, and adults alikeFitness Tool: Beyond being an entertaining toy, this Chinese interactive diabolo toy serves as a fitness tool that helps develop balance skills and hand eye coordination through play Specification: Material: PP Size Chart: Diameter 12cm/4.72inchLength14cm/5.51inch Package Includes: 1 Diabolo2 Diabolo Sticks1 String Note: 1.This is not infant toy , please take away from children to avoid eating.2.Please allow slightly errors 1-2cm differences due to manual measurement.