On This Rock Books carries a variety of colors and sizes of the Spiral Light Candle. Spiral Light is a candle manufacturer located in the small town of Hillsboro ND. They specialize in the design and production of the world’s only spiral burning self filling candles. This means that as the candle burns around the outside all of the melted wax collects in the hallow center and fills in around the standing wooden wick creating a cool second candle. Stop by to check out this unique candle!