Hands are used to separate horses from ponies. Ponies are 14.2 hands (hh) or smaller, while a horse is anything taller than 14.2 hh. For showing purposes, ponies are further grouped into small, medium, and large. Small ponies are 12.2 hh and under, medium ponies are over 12.2 but not to exceed 13.2 hh, and large ponies are over 13.2 but not to exceed 14.2 hh.