Made from natural soy wax, this candle is clean burning and free of the harmful toxins found in paraffin wax candles. The wick is made from natural hemp and cotton, both unbleached and free from chemical additives or harmful metals. The container is a lovely glass tumbler. Once you finish burning the candle, you may wish to use the glass for other purposes. As soy wax can be cleaned with soap and water, reclaiming the glass for alternate use is not only environmentally sound but very easy. Used properly, this candle will burn for over 40 hours.