The Candledust candles are in a transparent glass container (measurements 8x9 cm) and the candle is covered with a metal lid. The Candledust candles are scented with highest-quality essential oils (which are IFRA certified) and made of vegetable wax; therefore, they do not emit harmful substances, soot or fume during burning and they burn 60% cleaner than other candles. Welcome to a more eco-friendly way of enjoying your best scents!