3.5" Duo Glass Pipe

A 3.5 inch Duo Pipe courtesy of LuvBuds. A pipe is a small, handheld device used to smoke cannabis. Pipes are available in most dispensaries and in any smoke shop. Cannabis flower is packed into the bowl, which as the name suggests is the bowl-shaped area that holds the marijuana. When using a pipe to smoke cannabis, it is important to cover the carb, or hole found on the side of the bowl where the flower is packed.