The answer is so obvious that it's just never been studied. On a leash, dogs are restricted to a small area surrounding their handler, which the dog's nature dictates it must protect. If another dog enters that space, it's a threat. Off-leash, dogs are free to encounter each other and interact in neutral areas.
Model | SIZE | MATERIAL | COLOR |
21HD005 | S M L XL | Reflective belt traction rope | Red,pink,yellow,green |