Description COLORED FLASHING LIGHT-- Ankle bouncing balls have LED beads built into them. When you use the bouncing balls, it will emit dazzling colorful lights (no batteries or recharging required). And the faster you spin, the brighter the colors will be. The bright colors will be eye-catching and fun, suitable for children and adults. HOW TO USE -- First place one foot in the circle, then the ankle approach the inner wall of the circle to drive the rotation bar forward or backward. When approaching the other foot, jump over the rope and ball with the other foot, and the two feet work with each other to make the circle. Both feet work together, just like jumping rope. Long-term practice will promote the development of body coordination and increase physical flexibility. SAFETY MATERIAL-- Made of environmentally friendly plastic material, odor-less and non-toxic, strong and durable, not easy to bend during use, and light in weight. The ankle ring is covered with thickened soft sponge, comfort and safety, can protect your ankle by reducing friction. FOLDABLE DESIGN-- Easy to open when in use, not in use when folded does not take up space, which can reduce the size of the product. Whether at home or outdoor camping, carry and use are very convenient. PERFECT NEW SPORTS TOY -- Upgraded buckle design, make this flashing ball not only suitable for children but enthusiasts of different ages. This sports swing ball will help provide your child with hours of active, indoor and outdoor entertainment, also a good way to develop children coordination and balance. It also keeps adult healthy and lean for adult jumps, burns excess energy and promotes good health. You can use indoors or outdoors, such as parks, homes, yards, school playgrounds etc.