Our St Ives Glass Studio charm beads are now available online in a variety of colours and finishes (natural or seaglass). This sky blue hued charm in a natual (shiny) finish measures about 15mm across and features tiny raised glass "barnacles". The hole size of the charm is 5mm and is lined with sterling silver rivets. This charm will fit most of the popular charm bracelet systems but please ask first if unsure of the sizing.