A small device for smoking that is typically made of glass, metal, wood, or another material. Pipes, which come in a variety of sizes and shapes, are probably the easiest and most common way to consume flower. Four main parts make up a pipe:the bowl, where flower is burned, the mouthpiece, where smoke is drawn in, the chamber, where smoke is produced, and a carburetor, which controls airflow (though this is optional on most pipes).