Titanium Band TR6 This titanium ring has a shank width of 4mm. Titanium is a very lightweight metal weighing only one-third the weight of gold. It is a hard and durable metal. It is hypo-allergenic, perfect for those with sensitive skin, making it the metal of the new millennium. Available from ring sizes 5 to 15. Rings are supplied in a black ring box with a white pad. The ring box is supplied in a sleeve, labeled with product number and suggested retail price, for your convenience.