Swarovski 5328 5mm Xilion Bicone Bead in Crystal Moonlight. Sold in packs of 20 beads. The XILION Bead offers a one-of-a-kind brilliance, a crystal clear, polished hole with rounded edges not only amplifies sparkle, it also protects threads to produce longer-lasting designs, and the specially rounded equator which guarantees greater wearing comfort.