Back flow incense burner. It especially designed to create smoke that cascades downwards pouring dramatically down the hole with a stunning effect that will catch your eye. Once you have lit the incense cone, it will begin to smoke, the incense is heavier than air and it will  fall dramatically in swirls and twists, through the hole and down the item, to pool at the bottom. it is incredible to watch and very relaxing.

Back flow incense burner