The Crystal Knot Necklace is the best selling necklace because of it's versatility and customization! The knot is intentionally not glued - this allows you do adjust the necklace based on where you're wearing it so that it always lays flat and facing forward. • 13" or 16" necklace • Silver clasp with 5" Extender Chain • Cord end - stainless steal • Clasp and chain- zinc alloy • This product is intended to be used as a necklace • Designed in Los Angeles