You love a good layered necklace look, but it is so frustrating to have to reset each of the strands every few minutes to make sure that they're sitting nicely. This clasp works in two ways: 1. It prevents chains from spinning around each other behind your neck (which creates all of that tangling) and 2. it keeps them from rotating around your neck, which creates an uneven look in front. Plus, it will save you a ton of time taking necklaces on and off individually - you can attach them easily in front of your body and then the clasp just slides into place to hold them firmly. Keep a few of these so that you can have one per look and can avoid changing them out all the time!