All posts are stainless steel hypoallergenic. :: Lily Rose Co. earrings are handmade polymer clay earrings. As with any handmade jewelry there might be a slight imperfection or difference between each pair, and also have a variation from the picture listed. ::Caring for your earrings Keep earrings from contact with fragrance or chemicals Keep out of direct sunlight and store in a container or jewelry box/bag To clean earring use a lightly damp cloth and gently wipe. Do no wear earring into water