No one wants to muzzle their horse of pony but sometimes needs must. BUT with the larger eating hole, large breathing nse holes these are the best case scenario for all...
Small Pony Internal circumference 48 cm, height at back 13 cm, front 17 cm. Base diameter 13 cm. Hole 3 cm x 2 cm. Fits Shetlands or finer ponies up to around 12hh
Pony Internal 55 cm, height at back 15 cm, from 19cm. Base diameter 14cm. Hole 3 cm x 2 cm. Fits chunkier small ponies and ponies up to around 13.2hh
Cob Internal 63 cm, height at back 17 cm, front 22 cm. Base diameter 15 cm. Hole 5 cmx 3 cm. Fits 13.2 to 14.2 hh but if chunky, horse may be more suitable.
Horse Internal 67 cm, height at back 17 cm, front 24 cm. Base diameter 15 cm. Hole 5 cm x 2 cm. Fits approx 14.2 to 15.2 or larger if fine.
XL Internal 70 cm, height at back 17 cm, front 24 cm. Base diameter 16 cm. Hole 5 cm x 3 cm. 15.3hh plus.
Please note all measurements are approximate. There needs to be at least 2 fingers room between the muzzle and the horse’s face at the front and 3 -4 fingers at the back. The chin must not touch the back of the muzzle or it is likely to rub.