Bongs come in all shapes and sizes. Some are very basic with just a bowl and chamber. Others are colorful, mouth-blown works of art.

At the end of the day, they all do basically the same thing: filter and cool the smoke that comes from the burning cannabis.

Bongs generally feature a small bowl that holds dried weed. When you light the weed it combusts. Meanwhile, as you inhale, the water in the bottom of the bong bubbles (or percolates, if you want to get technical). The smoke rises up through the water and then the chamber before entering your mouth and lungs.