Description: Helps kids to know how the gravity works by yo-yoing up and down A popular pastime of kids, adults and also the old. Be conductive to eye-hand coordination Ball Material: aluminium alloy Ball Size(DxH): Approx. 5.7x4.25cm, Ball Color: black String Color: random Size Chart: Ball Size(DxH): Approx. 5.7x4.25cm Package Includes: 1 x Yo Yo 1 x Glove 3 x String 1 x Velvet Bag 1 x English Manual Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item Due to manual measurement, there may be 1-2mm error in size
