Zarbrina 8mm Silver Solid Stainless Steel Comfort-Fit Band Ring with Center Black IP Plated Chain Spinner Ring Material: Made of stainless steel which has high strength and hardness and will never fade, need low maintenance 8mm wide and comfort fit, matte/brushed center, beveled edge Weight:6.9g Width:8mm; Thickness:2.3-2.5mm Top quality stainless steel, cobalt free Original Stamp Pure stainless steel, Come with a nice velvet carrying bag. Please be aware of REPLICA. Zarbrina never authorize to any other seller.