Natural Sandalwood Backflow Incense Cones from India (made with essential oils) are made for backflow incense burners which allow the incense smoke to reverse flow creating a mystical effect with the pleasing aroma of Sandalwood.
Light the incense and after approximately and sit on a backflow burner. After a minute or so, the smoke will backflow from the top to the bottom hole and cascade down and around giving a mystical effect - completely mesmerizing!