The Tibetan Terrier is a powerful, medium-sized dog of square proportions, with a shaggy coat. They vary widely in height and weight, ranging from 14-16 in (35–41 cm) and is 18-30 lb (8–14 kg), with 20-24 lb (9.5–11 kg) preferred for either sex. All weights are acceptable if in proportion to the size. Fully grown, the Tibetan Terrier resembles a miniaturized Old English Sheepdog. The head is moderate, with a strong muzzle of medium length, and a skull neither rounded nor flat. The eyes are large, dark, and set fairly far apart. The V-shaped drop ears are well-feathered, and should be set high on the sides of the skull. Although the preferred colour for the nose is black, in showdogs, they are also sometimes brown. The body is well-muscled and compact. The length of the back should be equal to the height at the withers, giving the breed its typical square look. The tail is set high, well-feathered, and carried in a curl over the back. One of the more unusual features of the Tibetan Terrier is their broad, flat feet with hair between the toes, which are ideal for climbing mountains, acting as natural snow shoes.