A stunningly simple backflow incense burner in a black ceramic split bamboo ladder design.When the cone is lit the smoke from the cone cascades downwards in a mesmerising waterfall effect to pool at the bottom. Beautiful to watch. For best effects burn indoors in an area away from any sudden air movements. One backflow cone supplied with each incense burner. We also have a selection of backflow incense cones in a variety of scents. Please note that after burning it is normal for a light oily residue to appear on the oil burner. Simply wipe away with a damp cloth. Please exercise caution when burning incense.