LMAO!! Yeah I wondered the same thing!! I clicked on tha American staffordshire terrier link and it isn't "recomended" for them either!! But I do have a Giant schnauzer and they recomend it for them!! LOL! I think it would be ok for any medium or lg dog.
We have this in the fish version too (the orange one), it is Abby's FAVORITE toy! she hasn't broken the squeeker yet (in about 6 months) and broke the squeeker on the Cuz in about 2 days. We call the ruffians her "alien" bc at first we didn't even know it was a fish until I went to look them up online! hahahah! It has been very durable.