The sole should be slightly concave, with most of it level with the trimmed edge. Well-proportioned to the rest of the body. Large, generous eyes are desirable. Big, open nostrils are important for efficient air intake. Upper and lower teeth should meet to allow the horse to eat properly.
Younger horses have fairly straight teeth.
As the horse ages, the teeth angle out more toward the front. Signs of good health in a horse include bright, clear eyes, alert ears that follow you around like the eyes, a smooth shiny coat, a shiny, active tail that should be centered and not held to either side or between the legs, and a smooth walking motion. Different breeds of horse vary substantially in size and height, like the Shetland Pony, Arabian or Belgian Horses. It s a good idea to know the height of your horse as a guide when buying tack.