This toy is sure to make your cat happy and healthy! An interesting intellectual toys for your lovely cat. A toy that your cat will go crazy for it. Don't worry about your cat will boring when you are busy ,because it have good friend to play. Expertly designed with 3 levels of tracks and 3 brightly colored balls.When our lovely cat move the ball .we can hear the sound from the ball. Made of ABS plastic,the size as picture shown.