Titanium or Niobium Captive Bead Rings - Our Titanium and Niobium Captive Bead Rings are made from pure elements, no coating done here. Precision machined, hand polished, and 100% guaranteed. You can always be assured of our quality. Titanium is stronger then steel, light as aluminum, the space shuttle's structure is 85% Titanium. Titanium - today's vision, tomorrow's Gold.