Handmade using USA made 550 paracord, these collars are much more forgiving on your dog than a conventional chain collar. Available in any solid color or combination of two colors. Contact us if you don't see the color you're looking for and we will make it for you! To determine the size your dog needs, simply measure his neck. Add 2-3 inches and that should be the proper size. Some dogs do have a big head, so double check to see that the determined size will go over his head. Otherwise, order a size that will fit over his or her head. Training collars should only be used when on a lead or leash. Training collars should not be left on unattended dogs.