The NMPRS (Dutch Miniature Horses Registration Studbook) is a home-bred miniature horse. The aim of breeding with the NMRPS is to produce a European miniature horse breed, by means of cross-breeding. The horses must have the physical characteristics of a riding horse, with a fine build. The heads must be fine and noble and everything must be nicely in proportion. Every colour is permitted and there are various sizes. Miniature is from 0 to 86 centimetres inclusive, Small is from 87 to 95 centimetres inclusive and Large is from 96 to 106 centimetres inclusive.