Clear your mind and put it at ease with the view of the smoke replicating smooth flowing water, cascading down these beautifully made burner. The Backflow Incense Burner Zen Flow is specially designed to create smoke that cascades downwards. Once Backflow Incense Cone is lit and placed on the burner designed place, it will create smoke which will be pouring down the tower with a stunning effect that will catch your everyone's eye.  Please note: In order to create the smoke cascade effect you will need to use backflow incense cones.