Shih Tzu
The Shih Tzu is a sturdy little dog with a small muzzle and normally has large dark brown eyes. The Chinese have described their head shapes as "owl head" and "lion head", and their mouth as "frog mouth". They have a soft and long double coat. Although sometimes long, a Shih Tzu will not always have extremely lengthy hair like the Pekingese (but with short legs). Some of them have shorter, curly hair. This is purely a choice made by the owners. A Shih Tzu should stand no more than 26.7 cm at the withers and with an ideal weight of 4.0 to 7.5 kg. Floppy ears are covered with long fur, and the heavily furred tail is carried curled over the back. The coat may be of any color, though white and with blazes of grey are frequently seen. A very noticeable feature is the underbite, which is required in the breed standard.