Wool - used for spinning, and need to be groomed a lot more than any of the other breeds.
Flyback - where when you pet them backwards, their coats immediately fly back into position like the American Rabbit.
Satin - have a lot of Sheen and Luster to the coat, they have a glass like hair shaft that is able to reflect light.
Rex - have a short and plush like coat of fur, which is very soft
Rollback - when you pet the fur backwards it rolls back slowly into position like the American Chinchilla.