The unique design of the Orbit^TM and Orbit Jr.^TM flying disc makes them easy for dogs to grab in mid-air or pick up off the ground. The Orbit is availble in in 2 sizes, the orginal Orbit^TM and in the smaller Orbit Jr.^TM. Perfect for the backyard and park, the Orbit^TM is a great exercise toy that makes a game of catch more than just a healthy activity!