Chain Length: 20 inch Chain Width: 4mm Chain Link: 3.5mm X 11.5mm Quantity: 1PC Material: Stainless Steel with 18K Gold Plated, PVD Plated, Waterproof, No Tarnish, No Changing Color. All our items are NICKEL free and LEAD free. We offer combined shipping in the USA. All packages will be shipped from PA with USPS first class. Shipping upgrades are available. If you have any questions or special requests, please don't hesitate to contact us. Thank you! Hope you enjoy your shopping!