Layer your necklace designs with ease using this tube clasp. This tube clasp features spring rings attached on one half of the clasp. Attach the spring rings of your necklaces to the open loops on the other half of the clasp and then attach the loops on the other end of your necklaces to the already attached spring rings. This allows you to put multiple necklaces on without having to open and close the individual clasps each time. Your necklaces won't get tangled while wearing and you can even load up the necklaces ahead of time and take them all together (the way you want to wear them) while traveling. Change out the necklaces for endless style possibilities.