The one I chose is absolutely an average sized one. It's just like mine, that's why I think it would be appropriate. For the other guy asking I suggest to start with a dildo that's similar to yours in size. If the girl seems to like the whole thing with toys, go and buy a good vibrator or even better - a "rabbit". Don't choose the cheap ones, they look awful and aren't reliable. In general I think dildos bring in more creativeness in sex than vibrators which are mainly for solo masturbation.