Sold individually. This plain black niobium earwire from TierraCast is the perfect way to create modern earring designs that are safe for everyone to wear. The niobium material is hypoallergenic and comes in a fashionable black color that will blend well with any color combination you decide to work with. Its simple shape bends into an open loop at the bottom, allowing you to add your favorite pieces like elegant chains or beaded wire with any number of different color schemes. The black base is the perfect canvas for creating limitless ideas. Search for free earring ideas at our Learning Center to start making earrings for every occasion.