Soy wax is a renewable resource, and is not derived from petroleum products. These candles have all cotton wicks, and have no synthetic colors or scents. Scent is clean, fresh and natural, not overpowering or cloying. Comes in a reusable glass jar with an attractive black metal cover, with 5.5 oz. of soy wax by weight. Note: Prepare the candle wick properly to ensure the candle burns cleanly and lasts for a long time. Trim wick to 1/2 inch. Light candle and inspect flame after a minute or so. Try to light candle in a protected area away from wind. Flame should be about 1 inch high and not flicker or smoke. It should be still and clean burning.