Mexican-American jewelry designer Lindsey Alonzo of LUNASOL Jewelry creates her designs by combining her two favorite mediums; textiles and metal. Hand stamped & oxidized brass earrings with niobium earwires. Niobium is a hypoallergenic material that is safe for anyone to wear; especially those with metal allergies. It does not contain nickel. Earrings hang 2.75" from base of earwire.