I just got these in the mail and they look really sexy. They fit my TINY ass wrists and my boyfriends huge wrists! So honestly these have to fit any size. I really like the fact that they come apart easily; so if during sex you want both your hands with out having to take the time to take them off its nice. I havenít used them yet so they are a bit stiff but over time I think these cuffs will be perfect!