With the Superdisc, Alan Adler returned to his original flying toy mission of inventing an improved “Frisbee.” Conventional flying discs such as the Frisbee have a center of aerodyanmic lift near the leading edge of the disc in flight. This creates a tendancy for a flying disc to roll right during right handed throws and to roll left during left handed throws. The breakthrough spoiler rim design of the Superdisc, like the spoiler rim of the Aerobie rings, centers the aerodyamic lift of the disc during its entire flight, making the Superdisc a very stable flyer. The result is a flying disc that is very easy for people of all skill levels to throw well. The Superdisc also has a soft, rubber edge that has many benefits. It provides a great grip for strong throws, it is soft to catch, and it does not develop sharp scratches and burrs like a conventional disc when it hits pavement. The soft edge is also kind to a dog’s mouth when the Superdisc is used for play with a dog. The Superdisc floats in water. It is made in an assortment of colors (yellow, red, blue, and purple). Recommended for kids 8 years old and up. The Aerobie Superdisc is quality made in the U.S.A. Size: 10 inch diameter.