Size: approx. 8mm x 22mm
These great Niobium earwire are a cool, steely grey color. They blend great with silver, steel, rhodium, gunmetal, and many other metals. They are a great alternative to sterling silver for those with allergies. Niobium is hypoallergenic, perfect for all those people with sensitive skin.
Niobium is an elemental metal which is strong yet flexible. Niobium is chemically non-reactive, therefore very hypoallergenic. It can be transformed into brilliant colors through the anodizing process. The colors are created by refracted light, do not use paint or dye and do not negate the metal's hypoallergenic qualities (excerpt from Tierracast).