A glass smoking bong is a type of water pipe used for smoking tobacco, cannabis, and other herbal substances. The bong is made of a bowl, stem, and base, and typically features a downstem that leads into the water chamber. The user puts their mouth on the mouthpiece and lights the substance, which is then drawn through the water and up into the bowl. The smoke is then inhaled through the mouthpiece.
Bongs come in a variety of shapes and sizes, and can be made from a variety of materials, including glass, acrylic, ceramic, and metal. Glass bongs are the most popular type, as they offer a clear view of the contents and allow the user to see the smoke as it is being inhaled. Bongs are also relatively easy to clean and can be used over again.