1. Our bouncing ball is made of very good material and has high flexibility. When you open the package, the ankle skip ball may be curved, you can bend it in the opposite direction several times to straighten it. | 2. Easy to play: This ankle skip ball is easy for kids, adults and even if elders to play with, having some physical exercise. | 3. Flashing Lights: The ball on the end of the rope comes with a flash light, which doesn't need batteries, it will sparkling when it contact with the ground while playing. | 4. Excellent Workmanship: The ring on the top of the rope is wraped by a sponge, which can prevents detriment towards kids' ankle. | 5. Suitable for playing outside, Stimulating coordination skills. (Recommended for ages 5 years and up)