This is the piece I first though of making when I considered this type of jewelry. There is a bead for each child along with their birthstone. The Infinity charm is the closure through which the beaded end hangs. The beads are 12, 10, and 8 mm on this piece. A 6 mm bead is also available. If you have more than 4 children, contact us and we’ll figure the best customization for you. All metal is sterling silver. Birthstones are 4 mm Swarovski bi-cone crystal.