Product Description Poof Play Ball for DogsUse Plush Soft Material For the Cover, Convenient And Safe. Each Magic Roller Ball Is Distributed With Plush Hoods. Reduce Separation AnxietyRollerball is designed to keep your pet busy, reducing stress when you ignore them. It's perfect for when you're at work, has important tasks, or just relax and enjoy some quiet time. Built-in Battery Powered Motor It Will Roll Automatically From Inside The Motor. Just Unscrew The Ball, Insert An AA Battery, Click The Button On The Top, And Watch Your Pet Play For Hours On End Promotes Strong Mental HealthActive Rolling Ball can Improve motor skills, it not uncommon for our dogs to get bored, When you want to easily get your pet moving, this is a perfect choice, The colorful and bright colors can attract the attention of dogs and cats, so they can follow the rolling ball to move, which can improve the athletic ability of lazy pets. Product diameter: 10 cm Package include:1 x Pet Toy (Battery not Included) Note: 1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures. 2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm) Thanks for your support :)