Backflow Cones Refreshing These Stamford 'Refreshing' incense cones can be used with a backflow burner to create impressive smoke flow displays. There are 12 cones per pack with a burning time of approx 20 minutes per cone. Please note that it is normal for backflow cones to take up to 10 minutes to create a smoking/mist effect when used with a backflow burner. Stamford Incense is hand rolled using only the purest, highest quality ingredients. Manufactured using traditional techniques and timeless recipes handed down through the generations. A clean, smooth burning incense that transports you to another world with soothing fragrances to suit every mood or meditation.
