Ultra Durable Dog Toy The ball is created with best-in-class Poly-1, making it one of the toughest balls on the market. The Flingerz dog toy ball also whistles through the air, capturing your dog's attention as they chase one after the other. Hide small treats or peanut butter in the Flingerz ball to add even more fun to puppy playtime. The Flingerz stick is lightweight and designed for maximum control. Simply slide the ball onto the launcher and watch the ball soar across your yard or favorite dog park.