The Shih Tzu is a sturdy, lively, alert toy dog with long flowing double coat. Befitting its noble Chinese ancestry as a highly valued, prized companion and palace pet, the Shih Tzu has a distinctively arrogant carriage with head welled up and tail curved over the back. Although there has always been considerable size variation, Shih Tzu puppies are usually compact, solid, and carries good weight and substance.