The Aerobie Dogobie flying disc's flexible but tear and puncture resistant material is gentle on your dog's mouth and teeth but sturdy enough to endure fetch after fetch. With its patented spoiler rim design, the Dogobie disc is made for endurance. Floats in water. Size: 8 inch diameter. Floats in water. Size: 8 inch diameter. Available in blue and yellow, the two colors seen by dogs.(Dogs see other colors as shades of gray.) Quality made in the U.S.A.