Size Guide:
 
1 - Minature breeds
2 - Miniature Dachshund, Maltese, Papillon, Toy Poodle, Yorkshire Terrier
3 - Bichon Frise, Standard Dachshund
4 - Border Terrier, Cairn Terrier, Cavalier Spaniel, Jack Russell, Miniature Poodle, Miniature Schnauzer, Sheltie, West Highland Terrier, Whippet
5 - Basenji, Bedlington Terrier, Corgi, Fox Terrier, Lakeland Terrier
6 - Beagle, Bearded Collie, Border Collie, English Cocker Spaniel, Irish Water Spaniel, Standard Poodle, Rough Collie, Saluki, Schnauzer, Scottish Terrier, Welsh Terrier
7 - Dalmatian, Kerry Blue Terrier, Pointers, Samoyed, Shar Pei, Soft-coated Wheaten Terrier, Springer Spaniel, German Shepherd (7 to 9)
8 - Airedale, Alaskan Malamute, Bull Terrier, Chow Chow, English Setter, Flat Coated Retriever, Golden Retriever, Irish Setter, Labrador, Rhodesian Ridgeback, Siberian Husky
9 - Bassett Hound, Bernese Mountain Dog, Briard, Clumber Spaniel, Gordon Setter, Old English Sheepdog, Weimaraner
10 - Bouvier, Great Dane, Irish Wolfhound, Japanese Akita, Newfoundland, Pyrenean Mountain Dog, Giant Schnauzer