Shown as a 6 class breed.
The "American" was originally called the "Heavyweight Chinchilla" and was the result of selective breeding for size from the Standard Chinchilla Breed.
The American Chinchilla has medium body length, well rounded hips, well filled loin and hips. The back has a slight gradual arch starting at the ear base. With type being more important than color.
Bucks 9 to 11 lbs.
Does 10 to 12 lbs.