Riding pony is a horse show classification used to refer to certain types of ponies. Competition is divided into sections based on height and type, and include being judged under saddle in standard pleasure horse classes, as well as in related events such as sidesaddle or in-hand. Riding ponies were originally developed in the United Kingdom and are now bred all over the world. Generally speaking, where the term "riding pony" is used in a competition schedule it is accepted as referring to ponies shown under saddle on the flat, as hunter ponies and driving ponies have separate classes. Characteristics Riding ponies are conformed more like a small horse than a pony, with small heads and ears. They are compact, with sloping shoulders and a slim build. Their feet are tough and they possess strong limbs. They are well-proportioned with comfortable gaits and free-flowing movement. There are three types: Show pony: the classic "show riding pony", show ponies resemble miniature show hacks with pony features, and often contain Arabian or Thoroughbred blood. Show ponies are shown in three height sections - up to , , and 13.2 to . Show hunter: similar to the show pony, but with more substance. The pony should be suitable to carry a child across country. Height class divisions are the same as for show ponies. Working hunter: stockier, more workmanlike, and expected to jump a short course of natural fences. Height class divisions are divided into over and under . Fences should be no higher than for ponies under 13 hands high and no higher than for ponies over 13 hands. History Children's ponies in Britain were originally of native varieties, now the Mountain and Moorland pony breeds, used for riding and hunting. When pony classes were added to horse shows in the early 1920s, breeders began crossing Welsh and Dartmoor ponies with small Thoroughbred and Arabian horses. From the 1930s into the 1950s, Arabian blood was again introduced to improve stamina and refinement, which included one of the most influential sires, Naseel. The result was an elegant, but small, animal that is now seen in the show ring. In 1893, The Polo Pony Stud Book was formed, encouraging the breeding of fine riding and polo ponies. By 1899, there were over 100 stallions and 600 mares registered, almost half of which were native ponies. The society changed its name in 1903 to Polo