Hyperflite's K-10 Jawz disc is the toughest and best-flying puncture-resistant disc ever made. The K-10 Jawz disc stands up to gnashing canine teeth better than any other competition disc. All Jawz-material discs feature Hyperflite's patent pending X-Flash Anti-Glare Technology. Although the K-10 Jawz disc is remarkably tough in normal canine play, it is not intended to be used as a chew toy. K-10 Jawz discs do not float in water.