Burn time: 35+ hours Materials: This candle features phthalate free fragrance oil, and natural soy wax. They are hand poured in small batches, into glass containers that can be washed out and reused when the candle is done. Use: Due to the nature of soy wax, and the handmade nature of the product, variations in color may occur, as well as texture, especially after burning. For best results, allow the wax pool to fully develop to the edge of the container, especially during the first burn. Do not burn for more than four hours at a time.