1、Unresponsive Bearing: Yoyo with U shaped bearing, does not automatically return, you need to learn binding skills for complex tricks, suitable for advanced players. 2、Replace Bearing: With T shaped responsive bearings can be replaced, so that the rotating Yoyo ball can return back automatically, suitable for beginners, and children. 3、Great Balance: The two hemispheres with balanced weight, enhanced the stability of the Yoyo ball, which can provide high speed rotation without wobbling. 4、Beautiful Appearance: With a cool black design and unique coloring process, the Yoyo will never fade or wear out, making you stand out while playing with it. 5、Perfect Gift : Yoyo ball toy is a good gift for your kidsover 14 years old, suitable for beginner to advanced yoyo players, which can be used for daily practice or competition use. Item Type: Yoyo Ball Material: Alloy Size: Approx. 5.2 x 5.2 x 4cm / 2.05 x 2.05 x 1.57in Appropriate Age: Over 14 Years Old 1 x Yoyo Ball 1 x Gloves 1 x Plastic Box 1 x Chinese English Instruction 1 x Replace Bearing 2 x Gasket 3 x Strings