Size of muzzle: 13 20 28 8 BX1 - Boxer small EB - English Bulldog F2 - French Bulldog Big SH - Shih Tzu 16 23 30 B - Boston Terrier D1 - Doberman big EM - English Mastiff P - Pitbull 11 19 26 6 BM - Bullmastiff DD1 - Great Dane small F - French Bulldog RB - Russian Borzoi 14 21 29 9 D - Doberman small EB1 - English Bulldog small GSD - German Shepherd SL - Saluki 1 17 24 4 BC - Border Collie DBD - Dogue de Bordeaux EM1 - English Mastiff R - Rottweiler 12 2 27 7 BX - Boxer DH - Dachshund F1 - French Bulldog Big RR - Rhodesian Ridgeback 15 22 3 A - Amstaff D0 - Doberman small bitch EB2 - big English bulldog, short snout big dogs M - malinois T - Terrier 10 18 25 5 BG - Beagle DD - Great Dane EM2 - English Mastiff R1 - Rottweiler