The package says "World's best soft flexible rubber flying disc." They aren't kidding, this thing can fly! We've never been real impressed by rubber flying disks as they kind of flop around in the air and are difficult to throw. Not so for the Kong Flyer. This soft rubber disk is easy to throw and it really sails! During our extensive "testing" (hey, someone had to do it) we were able to easily throw the Kong Flyer well over 50 feet each time.Made by Kong from natural rubber, this disc is both flexible and durable. It is not a chew toy or tug toy, so keep it out of your dog's reach when you're done playing.Millions and millions of dogs have confirmed that Kong is The Worlds Best Dog Toy!