We are offering here the Dog Collar of various types that is a piece of material put around the neck of a dog. A collar may be used for restraint, identification, fashion, or protection. Identification tags and medical information are often placed on these collars. The Collars are often used in conjunction with a leash for restraining a dog. Collars can be traumatic to the trachea if the dog pulls against the restraint of the leash, causing severe pressure to the neck. The Dog Collar provides better control over your dog, which is especially important if youâre walking on a busy road, when surrounded by large crowds.