These Rich scenes 9 oz candles are made of 100% American Soybean wax for an intense fragrance that quickly fills a room; Soybean wax is clean burning and lead free. These candles burn for about 45 hours. The designer candles containing decorative dried or silk material require special attention; in some of these decorative candles the wax is placed off center on purpose; all the wax is not meant to melt in these candles. Refrigerate candles to prolong burning time; to maintain color and fragrance, store candles in a cool, dark, covered container.