The Papillon Dog is a small dog with long hair. The average adult length of the Papillon Dog is about 20-30ml and the weight is about 10g. They are small and slender. The head bones are small and round, the eyes are round and big, the mouth is long and moderately wide, and a pair of upright ears look like butterfly wings. It is a very good-looking dog. In addition, Papillon dogs have a very high IQ, and an adult Papillon dog is equivalent to a seven-year-old child.