Manufacturer's Description Dear Customer-- here we have the opportunity to offer you for sale this fancy 9mm D Shape Tungsten Brushed Metal Ring Band Highlighted By 2 Paralel Polished Grooved Channels - Size T. The Tungsten carbide ring takes a brilliant high polish, like a mirror, and resist scratching longer than any metal ever offered to the public. Roughly ten times harder than 18k gold and four times harder than Titanium. When Tungsten is processed with carbon and other elements it is transformed into Tungsten Carbide,WC, between 8 and 9 on the Mohs hardness scale, which is what most Tungsten rings are made of. Box Contains 9mm D Shape Tungsten Brushed Metal Ring Band Highlighted By 2 Paralel Polished Grooved Channels - Size T, Modern Ring Box