How to measure your wrist size...

Using a flexible measuring tape, measure just above (towards elbow) the wrist bone, then add approximately 1/4 inch to 1/2 inch (1/2 inch is average) depending on how tight you like your bracelets to fit.  That is the size bracelet you would wear.  If you don't have a tape measure, use a strip of paper or thin string, and mark it where it overlaps your wrist.  Then lay the strip flat to measure up to the mark using a ruler.