Glow in the dark. For all size dogs. Shake me! Makes fun giggle sounds when it moves around. Keeps dogs happy, healthy and fit! No batteries required! Can use indoors or outdoors. 6 clutch pockets allow dogs to easily pick it up. Tubes inside ball emit sounds and giggles when rolled or shaken. Furry friend tested, owner approved! Made of flexible and durable pet safe, phthalate-free vinyl. Product color and appearance may vary. Made in China.