For entertainment use only. Light the large end of the candle and then gently place the small end where you want the smoke to go. Do not force or push the candle. The goal is to let the warm smoke cascade out of the small end of the candle. These Multi-Purpose Hollow Candles are unique because they have an integrated filter tip that prevents any debris or ash from falling through the candle. As the candle burns, remember to cut off the ash every inch and extinguish the ash into a bowl of water. It is recommended to remove the candle from where you are using it while trimming. When the candle is burned down to four inches from the small end, extinguish it into a bowl of water and discard the unused portion.