These incense cones, from the brand Satya, provide an intense fragrance experience. They are special "backflow" cones, which means that they are specifically made for an waterfall incense burner. Because of the opening in the middle of the cones, the smoke flows down your waterfall burner. A waterfall burner is spectacular and relaxing to watch. Just like the other incense cones from Satya, only natural ingredients are used for backflow incense cones.