All our rings are made from medical grade Ti-6Al-4V also called Ti-6-4 (90% Ti, 6% aluminum, 4% vanadium). Ti-6-4 is a grade 5 Titanium alloy with a high strength-to-weight ratio and excellent corrosion resistance. It is applied in a wide range of applications such as the aerospace industry for its high strength-to-weight ratio and the medical industry (implants and prostheses) for its high strength, biocompatibility and hypoallergenic properties.
The biocompatibility and hypoallergenic properties of Titanium make it perfect for contact with the human body. Titanium is considered inert so it will not cause an allergic reaction and it will not discolor the skin.
The polished and brushed surfaces of Titanium have a silver-gray color. While the laser engraved surface of Titanium has a dark matte gray color.