Features: Unresponsive Yoyo: The Black Peal is an unresponsive yoyo, using an unresponsive bearing. You'll need to perform tricks to get it to return. Perfect for more advanced "sleeper" tricks. Excellent Performance Yoyo: Made from 6061 alloy aluminum by CNC numerical control lathe, corrosion-resistant, stable and sturdy, you can play yo-yo string tricks very well. It's a professional yo-yo. Anodizing surface treatment ensures this professional yoyo ball never fades and is not easily scratched. It's a great intermediate yoyo. Undersized Yoyo: Diameter: 52MM. Width: 40.16MM. Axle width: 4.45MM, perfect for everyday use. However, it's quite heavy for its size due to the rim weighting. This makes it very stable and comfortable to play with. The slightly heavier weight gives the yoyo good balance and longer spin time. Nice and Fun Gift: This yo-yo toy is an ideal gift for your children and friends. It's fun and educational. TIPS: 1. This is an unresponsive yo-yo, meaning you need to perform tricks to get it to return to your hand. It will not automatically return like a responsive yoyo. 2. Age: 8 years and up. 3. The yo-yo string should be replaced regularly when it becomes worn; this will help you play better.