A single Chube threaded on cotton cord, mat effect. They come on a long cord, so you can adjust to make a necklace thats right for you or you can add them to your hoody strings. They all come with 3 spares and so can be used as replacements for a single effect necklace or make them up with 2,3 or 4 on the one cord or add them to your hoody strings! Your choice! All with a breakaway clasp.