A Melt is a highly scented wick-free candle which you use much like an essential oil on an oil-burner, just without the water. The wax Melt is placed on the top with a lit night light candle underneath in the burner. It then melts and will continue to send a lovely strong fragrance through your room or house for the next 20+ hours. Contains Elite 300 Vegetable Wax, concentrated fragrance oils. All H&W packaging is made from recycled kraft paper wherever possible.