Jewelry Findings: Headpin Sterling Silver (925) ø 22 ga (0.643mm) w/ ball end, 2.0in (50mm) long. These headpins are very reasonable priced. They are thin enough to go through most Freshwater Pearl holes. The ball end is a very nice way to finish jewelry, no need for an extra bead. Shop for wholesale beads, Murano and Venetian glass beads, discounted moon beads and freshwater pearl jewelry findings, stringing and knotting -- Swarovski