The patented threading system is what makes the Pandora bracelet unique (U.S. Pat. No. 7,007,07). Each bracelet is divided into three sections by small threads. Every bead is equipped with interior threads. This allows you to twist individual beads onto any bracelet segment int he other you desire. To complete the bracelet, tow clips are placed over the middle tow threads. The clips are opened by sliding one fingernail into the side corner of the crease. The clip will gently open. To close the clip, simply pinch the sides together. the beads move freely and rotate slightly with your wrists' movement, creating an undeniable eye-catching effect. If you chose to add the decorative safety chain, place the swivelcuff onto your bracelet first. Then arrange beads in the desired order and finish with the second cuff.