Also called a water pipe, this is a large pipe that holds water for filtration. Unlike a bubbler or handheld piece containing water, a bong is usually much larger and consists of a tube mouthpiece that your lips go inside rather than around, such as with a handheld bubbler. Bongs can come in a variety of shapes and sizes and typically consist of a tube, downstem and bowl. Most commonly used with flowers however, can be converted to a dab rig by replacing the bowl with a nail! (Usually 45 degree)