MASOP Titanium Steel Jewelry 4.5mm Link Chain Necklace for Men 20-36 inch Material: Solid titanium-and-stainless-steel,, which is high strength and hardness. Advantage: 100% safe to wear, not tarnish, no rust, no allergies, lead free and nickel free. 60CM (24 Inch) Length, Width 4.5MM. Exquisite workmanship. High polished finish. Top Quality. Brand New Design. Wrapped in a good quality jewelry gift box and a velvet bag. Great choice as a gift.