The chuckit erratic ball is not your normal round ball the angular shaped ball bounces wildly everywhere just not where you expect and your dog will have its work cut trying to catch it this vivid green ball with the random bounce action is great fun inside the house as well as out roll it and try to guess where it will go and for even more fun use the chuckit erratic ball with the chuckit ball launcher the launcher helps you to throw the ball further and adds a new dimension to game