I bought this for my 16 yr old son for Christmas.  He LOVED IT! However, within an hour of wearing it - while sitting in front of the tv playing a new game - it literally just fell off his wrist.  Luckily, we were able to find the pin and repair it - but its something to be on the look out for with this bracelet.  If your buying for a teen or young adult - you will more then likely have to pay additional money to resize at your local jewelers.