A dog collar is nothing but a piece of long slim material which is to make around the neck of your beloved dog to get them in your control.  The purpose of using any type of collars to your beloved dogs is only to bring them in your control and you can give some identification as that is your dog.  In addition, if you wear any stylish pattern of dog collars, that may be only for fashion.  Mostly in dog collars, somebody will engrave their own address, any medical information for some kind of recognition and remembrance.  By using collars for your dogs, you can control them manually and since they are having fine handling grips, controlling your dog is easy also.  There are so many varieties of dog collar available in the market like nylon collars, leather collars, metal coated collars, bamboo collars, thin type, thick material, etc., and according to you dog’s breed and height and weight, you have to choose them for perfect fitness. Mostly collars are used in combination of a leash.  On putting collars on them is only due to have a leash and give training and teach anything as you like. For every dog, if you want to train them properly and for teaching obedience, you have to use a dog collar and a leash.  These are only two basic items for every dog. But since these two are very simple to use, you have to be very careful in this regards. Failing which it may cause any kind of injuries to your beloved dogs and even death also may occur.  There are two aims mainly caused to create dog collars and leashes.  One is for training purpose and another one for day to day regular use.