Our Lenora Dame designs may contain elements of base metal, brass or tin alloy, copper, nickel, gold, silver, jet, copper, and lead. Some metals and finishes commonly used in jewelry making are an allergen to some people. Many of our One-of-a-Kind designs include vintage pieces where we are uncertain of the exact content of the materials. Some designs may also contain tree nut products which are also an allergen to some people, however, in these designs it is noted in the product description. Please consider this when making a purchase keeping your allergies in mind. Also, please keep your Lenora Dame pieces in a safe place and out of reach from small children due to the risk of choking and possible ingestion of lead and other heavy base metals. We want to keep our little fashionistas and future Lenora Dame customers safe!