Just fit, fasten and walk. Conveniently labeled to use in three easy steps, the HOLT walking collar by Coastal Pet Products, Inc. provides gentle guidance to stop dogs from pulling while walking. The HOLT features a padded nose band for comfort and an adjustable camlock for the perfect fit while still allowing the dog to pant and drink water. Breed Examples: To be used as an example of size only. Size 0 - Miniature Dachshund, Papillon, Toy Poodle, Yorkie. Size 1 - Border Terrier, Cairn Terrier, Jack Russell, Standard Dachshund, Welsh Corgie, Shelti, Westie, Whippet. Size 2 - Beagle, Border Collie, Cockers, Saluki, Schnauzer, Standard Poodle, Basenji, Welsh Terrier. Size 3 - Afghan, Airedale, Boxer, Briard, Chow Chow, Dalmatian, Doberman, Greyhound, German Shepherd, Husky, Retrievers, Setters, Springers, Weimaraner. Size 4 - Mastiff, Clumber Spaniel, Giant Schnauzer, Great Dane, Newfoundland, Ridgeback, Rottweiler. Size 5 - Bloodhound, Large Danes, Mastiffs, St. Bernard.