This cool candle holder makes your candles last twice as long! Underneath the candle there is a chamber that contains a second wick. As your candle burns the wax collects inside the chamber and a second candle is formed.
Source: BENJAMINSHINE
After the original candle has burnt out then you can burn the new candle. The new candle is of course just the old candle but with a new wick! You can open the chamber which serves as a mold to remove your new candle.
Source: BENJAMINSHINE
If you wish you put it in the same holder and recycle it over and over again until there is not enough wax left to do so.