Miniature Horse color: Buckskin size in inches: 5H x 2W x 7L weight in pounds: 0.25 recommended age: 8 and Up date retired: Jan 1, 2005 description: Standing no more than 38 inches tall, Miniature Horses have big personalities and presence! Buckeroo, a buckskin mini with black mane and tail, is a show horse best known as a sire whose progeny consistently win at the National Championships and Top Tens lists.