... /PCS wheels 3.Colorful New ABS 4.Toy for kids QQ roller ball New product toy QQ spinning dancer,Details:Item: QQ roller ... length and size, are carefullycalculated and used as a fulcrum for the principle of coordinated movement of legs skillfully led,movement ... pressure, mobility, won't using the product, they arenot suitable for strenuous exercise.4.The kids should play under adults' care ...