The double helix is a pair of parallel helices intertwined especially in the structure of the DNA molecule. The DNA Double Helix Earrings are made from sustainably sourced wood and 90% recycled display cards. Laser-cut wood and stained with a water-based dye. Ear wires are silver-finished 304L stainless steel, hypoallergenic, and enhanced with a smooth and consistent electrophoretic coating that resists tarnishing.