These beautifully scented Sandalwood backflow incense cones are developed by Satya. The cones are crafted using the highest quality ingredients to offer longlasting fragrance. Use these cones with a backflow incense burner to create stunning smoke displays. Beautiful to watch. For best effects burn indoors in an area away from any sudden air movements. Please note that after burning it is normal for a light oily residue to appear on the burner, for this reason we recommend protecting any furniture it is placed upon suitably. The residue can be easily wiped off the burner with a damp cloth. Please exercise caution when burning incense. It is normal for cones to take up to 10 minutes after being lit to start creating the smoking/mist effect.