Stamford Backflow Incense Cones are designed such that smoke cascade down to enhance beauty of burner and perfume your home for a longer time. The smoke cascades downwards as these backflow incense cones have a hole through their centres and the special backflow burners (not included in this pack) have reservoirs for the smoke to flow through. 
• Contains 12 incense cones approx
• Made from perfumery raw materials only
• Recyclable packaging
• For best results place it on backflow incense holder