With the Vapocane attachment you can turn your bong into a "vaporizer". The Vapocane-B attachment itself is made of borosilicate glass (Pyrex) and consists of two parts, a glass bowl and a hollow glass rod.
Vaporizing with the Vapocane-B is simple. By heating the glass rod and sucking the hot air through the glass bowl, you vaporize the herbs. You then suck the vapor through the water and the water pipe, filtering and cooling it.