Our V2 Flat Leash introduces a D-ring designed to address a common issue with pinch collars, specifically Sprenger-style pinch collars. Over time, these collars can fail and pop off as the links wear out. The added D-ring allows a user to hook the leash directly to a Switchback Safety Line and the dog's backup collar, significantly reducing the risk of the dog becoming unleashed if the pinch collar fails.