Size indicates length of dogs back, from the base of the neck to the base of the tail.
30cm Back Length - Suitable for Fox Terrier, Italian Greyhound, Jack Russell and similar sized breeds.
35cm Back Length - Suitable for Border Terrier, Havanese, Shih Tzu and similar sized breeds.
40cm Back Length - Suitable for Beagle, Cocker Spaniel and similar sized breeds.
45cm Back Length - Suitable for Poodle, Shar Pei and similar sized breeds.
50cm Back Length - Suitable for Border Collie, Whippet and similar sized breeds.
55cm Back Length - Suitable for Basset Hound, English Setter, Old English Sheepdog and similar sized breeds.
60cm Back Length - Suitable for Boxer, Dalmation, Golden Retriever and similar sized breeds.
65cm Back Length - Suitable for Bullmastiff, German Shepherd, Rottweiler and similar sized breeds.
70cm Back Length - Suitable for Bernese Mountain Dog, Neapolitan Mastiff and similar sized breeds.
75cm Back Length - Suitable for Great Dane, Irish Wolfhound and similar sized breeds.