It's about the same size as my normal male, but I wasn't sure how old he was either. I took a guess on my normal and said 4 months when I got him, so now I'm guessing he'd be 6 months now. So, to guess for yours, I'd say 4-7 months old. You can never tell a snakes' age unless the person who sold it to you told you (or if you hatched it out then you would know how old it is, but that is not the case for this thread).