So I've re-read the ad 4 times, and it never stated that the pastel was a ball python. Even the header says "Boas". And by the photo they are both deff boas. I know I'm not a snake expert, but I know the difference between a ball python and a boa. ^^ I don't mean to sound rude, but I think you might of misread the ad. I have to keep double checking myself to make sure I didn't misread it. hehe. Sorry to be a bubble burster.