At 20 inches, this 3mm black leather Caspia™ necklace is one of the longest finished necklaces that we sell. Its bold black appearance and simple sterling silver trigger clasp make it appropriate for both men's and women's jewelry. One end of the clasp unscrews, allowing you to slide beads over the stringing material. With this handy feature, you can use beads with bead holes that closely match the 3mm width of the actual stringing material. Try stringing this necklace with large hole Caspia™ beads for a high quality design that can be finished in minutes. Note: If the end is screwed too tightly it can break off.