Each candle is handcrafted to create a unique statement celebrating the beauty of natural rock formations. We use slate, shale, limestone, granite, and river rock to provide a one-of-a-kind candle that never burns away! Because our candles use smokeless and odorless (unless you add scent, of course!) liquid paraffin oil, our candles can be burned indoors or out! Additionally, because our candles burn at the rim of the wick stem, the wicks NEVER burn away! Our candles make a memorable and lasting gift of nature and light!