18K Gold Non-Tarnish Seahorse Charm Layered Necklace 18K Gold Plating Stainless Steel Pendant Size (inch): 0.64 Diameter Layered :Chain Length (inch): 15.74 Layered :Chain Length (inch): 16.92 Extension Length (inch): 1.96 Lead-free, Nickel-safe Hypoallergenic Water Resistant