Description: When it is on, the ball will shake, lasting for seconds to make the dog excitedly bark, it will be activating again by shaking and touching strongly, let the dogs enjoy it and have more fun. Exercise - The toy ball is a copy of the puppy's voice. When you are not there, the ball will accompany your dog and play like a friend to help the dog exercise more and have fun. Interactive - cute-interactive monster toys attract dogs. crazy vibrations and squeaking balls makes the dogs chase and play. The crazy shaking of the toy can release the dog's energy and make the dog's hunting instinct better. Washable - Cute plush covers can be replaced and cleaned at any time, and the replacement of the plush cover keeps the dog fresh. Fun - The cute, funny, non-toxic plush cover has a ball device and a variety of plush covers which are available and can make the dog to play happily and become a fun friend of the dog. Specification: Material: plush Power by: 3x AAA battery ( not include ) #1 Size(LxWxH): approx. 11x12x11cm/4.33x4.72x4.33inch #2 #3 #4 Size(LxWxH): approx. 17x14x9cm/6.69x5.51x3.54inch Package Includes: 1 Piece Ball 1 Piece Screwdriver Note: Since the size above is measured by hand, the size of the actual item could be slightly different from the size above. Dueto the lighting effects, monitor settings, etc. There could be someslight difference in the color of the pictures and the actual item.