These candle snuffers are a neat idea that allow you to automatically extinguish a candle after a predetermined time interval. Simply slip the device onto a candle, and the spring loaded cap or lid will automatically be held in the open position. However as the candle burns down, there will come a point where the spring loaded cap will no longer be held open, and the spring will cause it to close, over the flame, and put the candle out. <br /> <br />You could use it to extinguish the candle after a set period of time, or as Tim suggests in the video, you could use these as a safety feature if the candles were placed in a wreath or decoration, and you didn't want the candle to burn down so far that there was a danger of setting the decoration on fire.
