Bridesmaid Bracelets How Do I Inconspicuously Get My Bridesmaid's Sizes?

How do I inconspicuously get my bridesmaid's sizes? - bridesmaid bracelets

I my five bridesmaids bracelets engraved as a gift. However, two of my daughters (sisters), I have no idea what their size, the wrist! Surprisingly, my mother () I do not know, I know none of his friends, none of them have a friend, and there is literally no one I can ask to see if they know (and I, "I asked at all). So I must find out for yourself. The bracelets are designed and it will be difficult and expensive to make changes in size. So, if you really want to make these bracelets specific (and really, really, no, they are beautiful!) How can I get the size of the wrist, without anyone noticing it? (It may be a wrist size, in general, but I will not be too small or too large.)