I bought this necklace, because the shutter is very narrow and is therefore well suited for my followers. Immediately after delivery, I threaded the pendant and worn the chain day and night. After two weeks, the rubber material was no longer soft, but cured and felt like plastic. I thought that was not good, but wore the chain on. By curing but the rubber band broke up after four weeks Wear time of the closure, although it was absolutely fixed in the new state. Fearing the loss of my dear trailer I made a after receiving the chain a pull test. Conclusion: New = great After four weeks of continuous wearing = scrap. Too Bad :-(