Hinges features: Children Glowing Bouncing Balls Foldble Flashing Jumping Rope Ball(Blue） Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. Colour:Blue (Safe Material)Made of Eco-friendly PP material, odor-less and non-toxic, safe to use. (Feature)A great toy to encourage children to exercise, also a good way to develop children's coordination and balance. (Built-in LED) flashing lights(induction design), which will make you eye-catching, especially at night. (Foldable)Foldable Ankle Skip Ball Flash Jump Colorful Sports Swing Ball (How to use)First put the tail ring on one foot, and then rotate forward or backward. When the pole is turned to the other foot, lift the other one, and the two feet cooperate with each other to make it cycle.. Great jumping ball toy for kid fitness and playing, your kids will love it