PYROPAK® Non Sulfur Smoke produces a plume of smoke which can be washed with color from lighting instruments. It can also be used to create effects for appearances, disappearances, and magical sequences. The PYROPAK® non-sulfur gerbs do produce an odor, however it does not smell of sulfur. The non-sulfur PYROPAK® smoke gerb has an electric match installed, standard lead length is 72".