Circumference of the muzzle nose part
Height at back of muzzle
Height at front of muzzle Size of grazing hole
Small Pony 48cm 13cm 17cm 2 x 3cm
Pony 55cm 15cm 19cm 2 x 3cm
Cob 63cm 17cm 22cm 3 x 5cm
Horse 67cm 17cm 24cm 3 x 5cm
XL 70cm 17cm 24cm 3 x 5cm

As a rough guide, Small pony will suit Shetlands and fine ponies up to approx 12hh

Pony will suit approx. 12 hh to 13.2 hh

Cob will suit approx 13.2 – 14.2 hh

Horse will suit chunky 14.2 – approx 15.2 or fine 16HH

XL for chunky types and big horses.

There are some images below to help with the fit. Please bear in mind these muzzles are deeper than standard muzzles and are designed to be loose fitting. You should be able to get at least 2 – 3 fingers around the sides of the muzzles. If in doubt go bigger not smaller.