Knife through cigarette

They borrow a cigarette that comes in a previously-studied tube, then the tube is closed with a lid also previously investigated. With a cutter or a knife is a transversely through the tube-slot and thus clearly cut through the cigarette. The knife inserted in the tube, the cigarette has no chance of survival. Nevertheless falls after removing the cover, an undamaged cigarette out of the tube. If you want, you can copy this trick an audience immediately. It does not. Nothing needs to be added or placed aside, because nothing is pushing to exist, the trick can be always given to examine out of hand. The trick works with any standard cigarette. Magic Items are non-returnable.