Loyoe Jewelry 18k Yellow Gold Filled Mens Necklace Solid Herringbone Chain (23.6",9mm) Classic herringbone chain makes a simple basic casual necklace solid heavy herringbone chain necklace jewelry 60cm (23.6inches) 6mm width,58g Chain bracelet have a heavy duty lobster clasp to securely connect the necklace Lifetime Warranty ,no nickle lead free