Choose a size that is about 1/2" or 1.3cm LARGER than the actual wrist measurement. Take a piece of string and wrap it around the wrist, then measure the length to convert it to the right size

This size bracelet is large (8" or 20.5cm)

Stainless steel bicycle spoke twisted up to make a bracelet that clasps together with it's own hook. Very simple and totally says "I ride" to anyone who sees it. Great to wear while cycling or at parties for a conversation piece.