Reviewed for accuracy December 8, 2022. The American Miniature is a unique yet common horse breed in the United States. Although its proportions conform to current standards, it is distinctively small. Nevertheless, it is still used for several disciplines including jumping, driving, and halter. Physical Characteristics At most, an American Miniature horse can measure 8.5 hands (34 inches, 86.4 centimeters) high at the withers. One centimeter more and it cannot qualify for the American Miniature classification.Essentially a full-size horse that has been miniaturized, the American Miniature has lengthy and angled shoulders; a long and flexible neck; well-formed forearms; wide-set and large eyes; flaring nostrils; and medium-sized, pointed ears that seem to be perpetually standing at attention. Though muscular, the American Miniature moves smoothly and gracefully, which may be due to its short back, straight legs, and long, sloping pasterns. Its head is not overly large or small but rather proportional to the rest of its body, while its neck is long and flexible. The American Miniature comes in various coat and eye colors.