Irregular rolling ball with LED color changing lamp. Detachable magnetic feather. Your cat will love it. LED light flash effect, two-stage mode. This self -rotating cat toy will keep your pet busy and get them up and moving. Get more exercise for indoor cats when they try to catch the moving ball. The ball will automatically change its direction when colliding with a wall, chair, door, etc. No extra help required. Regular Mode --- press power button once, LED lights ON, the ball starts to roll in its irregular running route. In this mode you need to turn off the ball when your cat needs to rest. Suggested play time is no more then 15 minutes. Smart Mode --- press power button twice, LED light and rat sounder turn on and will turn itself off after 10 minutes. This cat toy is made of high-quality ABS material which is scratch and bite resistant.