| Size | Breed | Nose Circumference |
| 1 | Pomeranian, Toy Poodle | 3 inches |
| 2 | Miniature Dachshund, Miniature Poodle | 4 inches |
| 3 | Jack Russell, Schnauzer, Dachshund | 5 inches |
| 4 | Beagle, Springer, Cocker Spaniels | 6 inches |
| 5 | Basset Hound, Doberman, Siberian Husky | 7 inches |
| 6 | Dalmatian , Weimaraner | 8 inches |
| 7 | Retriever, Akita, German Shepherd | 9 1/2 inches |
| 7XL | Great Dane, Wolfhound | 10 1/2 inches |
| 8 | Rottweiler, Mastiff, St. Bernard | 11 1/2 inches |
| 8XL | XL Rottweiler, XL Mastiff, XL St. Bernard | 13 1/2 inches |
