Purposes of a leash include: preventing animals from frightening or biting people or other animals, defecating and urinating in inappropriate places, endangering traffic, digging up lawns, causing other damage, getting lost, and getting away from owners. Leashes also provide a clear method of communication and ensure control during training of dogs.Our double strand strong dog leash and harness set features a wide chest to distributes the weight throughout your dog’s chest and shoulders, which treats dogs to the most comfortable walking experience—especially with the extra padding! And with the cleverly placed D-ring, it gives dogs plenty freedom of motion while leaving the ultimate control to you. A built-in handle allows you to keep your dog close when needed, as well as help him over rougher terrain.