Size of muzzle: D1 RB - Russian Borzoi EB - English Bulldog F2 - French Bulldog Big OB2 11 R1L 19 26 4L B - Boston Terrier BC - Border Collie BT D3 SL - Saluki EM - English Mastiff J2 P - Pitbull 14 R3 21 29 6L B1 D - Doberman small R3L DD1 - Great Dane small F - French Bulldog 1 R1 17 24 30 9 B3.5 BG - Beagle D1 - Doberman big RR - Rodesian Ridgeback EB1 - English Bulldog small GSD - German Shepherd OB3 12 R2 2 27 5 B0 BX - Boxer DBD - Dogue de Bordeaux T - Terrier EM1 - English Mastiff 0 R - Rottweiler 15 22 3 7 B2 D0 - Doberman small bitch R4 DH - Datchhund F1 - French Bulldog Big OB1 10 R1 - Rottweiler 18 25 4 A - Amstaff B4 BM - Bullmastiff D2 SH - Shih Tzu EB2 - big English bulldog, short snout big dogs J1 OB4 13 R2L 20 28 6 B0.5 BX1 - Boxer small R3.5 DD - Great Dane EM2 - English Mastiff M - malinois R0 16 23 3.5 8 B3