Frisbees made of heavier, harder materials will fly better than those of a softer material. However, this does not mean that you have to select the hardest and heaviest frisbee you can find. Hard frisbees are also inherently more dangerous than soft ones.
They can cause unintended injury, break your dog’s teeth, and even seriously injure them, especially if they begin to learn the game. Unless you intend to participate in disc competitions, we recommend that you not select a hard frisbee for the flight distance alone. Even then, all dogs must first be trained with a soft Frisbee to prevent injury.