This muzzle has a forehead strap to help prevent the dog from getting the muzzle off. This muzzle will fit short snout dogs with a muzzle circumference between 13 inches and 14-1/2 inches.
This muzzle is 15" around. The length is 3" on the top and 4-1/2" on the bottom.
Measure your dogs length and circumference of his snout.