John makes A LOT of great things.

THIS is not one of them.

It's a cute, TOTALLY impractical idea and gimmick that will be forgotten in the bottom of a drawer.

You will NEVER use it.

Brilliant little gimmick allows you to do exactly what John does in the video. Good as a weird flame control gag or could be integrated into a routine which uses fire (Fantasio candles, blister, etc.). Is it self working? NO! You must practice the timing of "take: off/on, put: on/off". Both hands/fingers must simultaneously coordinate actions. Also, you must forward the directions regarding the illusion you create holding the flame or you will burn your finger. You have to be careful. It takes practice, but once you have it down you will have a little miracle.