U7 Fashion Bead Chain Unisex Eye Shaped 18K Gold/Platinum/Rose Gold Plated 5mm Wide Chain Necklace Cool eye shaped bead chain. Base metal : copper. Metal type: 18K Gold Plated, a method of depositing a thin layer of 18k gold onto surface of item. Lobster claw clasp : durable, easy to puot on or take off. Nickel free. 18K Stamp on clasp. Come with U7 design gift box. 90-day money back guarantee or exchange!