Shih Tzu, << shee dzoo, >> is a breed of small dog that originated in China. It measures from 8 to 11 inches (20 to 28 centimeters) high at the shoulder and weighs from 9 to 16 pounds (4 to 7 kilograms). The Shih Tzu has a round, broad head; large round eyes; and a short, square snout. It has a long, luxurious coat that comes in a large range of colors. Its tail is also thickly covered with hair.