Real butterfly wings are encased in resin to make these unique, cruelty-free earrings. The wings come from insects raised in butterfly farms and sanctuaries in Central and South America. After the butterfly has completed its entire natural life span of about 2 to 3 weeks, the wings are sent to a small family-run jewelry business in southern California, where they are preserved in clear, lightweight resin using a proprietary process, and finished with sterling silver ear wires. Each pair includes silicone backings and an information card. Length is measured from the top of the ear wire.