Dog collars are very useful because they help you tame your dog. Besides that, they ensure that your dog doesnt run away and start attacking strangers. Once you make your dog wear a collar, he will be identified as a pet and not a street dog. Another important thing to note here is that dog collars promote safety of dogs.Nylon Leash and Collar Set is an ideal and sturdy leash for small breeds. Made with durable material.