Features: 1.The backflow incense burner, the incense cone with reflux effect is suitable, light the incense burner, wait a few seconds, the smoke will flow. 2.This is a nice decoration, looks like a very beautiful waterfall. Clean the incense burner after using each incense cone to make sure it is not blocked. 3.The backflow incense burner can be used in conjunction with the incense cone, has a hole at the bottom of the cone so that the smoke exhaust port faces downward instead of upward. 4.Cool small reflux furnace, incense burner can be used as a gift, can also be used as an ashtray, decorations. 5.Suitable for backflow incense cones with holes in the bottom for the flue gas to pass through, just make sure to get the correct cone and then drill holes in the bottom. specification:Item Type: Backflow Incense Burner Uses: Used for gifts, ornaments, etc. Size: Approx. 12 x 8.8 x 4.4cm / 4.7 x 3.5 x 1.7in Material: Alloy PackageList:2 x Backflow IncenseBurner NoteManual measurement, for reference only.