We manufacture these 16 oz opium scented jar candles here in the U.S.A. The wax is poured into a beautiful apothecary style jar with a dome lid. We use paraffin wax and a single lead free wick which burns great, melting the wax all the way out to the edge. Our scented candles are perfect for use in the home, hotels, churches, and restaurants. This medium jar candle also would make a nice house warming gift.