This is one of the finest precision close up effects crafted in solid brass.
In effect performer displays a solid brass tube large enough to hold a cigarette. The tube has a metal collar with a slit in the middle.
A cigarette is placed in the tube, and a blade run in the metal collar, which slices the cigarette in half.
Performer then repeats the experiment with a touch of magic, and the cigarette is completely unharmed.
A mechanical item, supplied complete with instructions.