Want to maximize your dog’s strength, speed, and agility? With this tool you can train your dog using the same resistance & assistance protocols that professional athletes and Olympians use to reach peak performance. Simply attach the bungee to your dog’s harness and you train your dog: Resistance training pulls your dog back as they run, forcing them to recruit more muscle fibers to keep going. This type of training helps develop explosive movements in a way that can’t be done with body weight training alone. It’s the perfect way to add extra resistance to your dog’s training routine—quickly, easily, and safely.