Cafe Medium Crackling LumiWick Vase Candle - Yankee Candle Premium-grade paraffin wax that delivers a clean, consistent burn. Premium quality ingredients with natural essential oils create distinctive true-to-life scents Lab-tested to ensure the appropriate strength and consistency. 100% recyclable and accepted by most recycling centers. Wide wooden Lumiwick surrounded by 100% cotton. It provides a soothing crackle sound to add to the ambiance of your room. It is hand straightened to ensure it is centered for the best burn possible.