Metal pipes certainly have their place in the smoking world. More durable than glass and easy to clean, metal pipes provide a great sense of security and reliability. Overall, metal pipes tend to come in the form of one hitters or straight tubes in order to better facilitate easy cleaning and prevent the building of any moisture or resin that could lead to rusting or other damage. Metal pipes are relatively inexpensive and a fine option for anyone worried about dropping or breaking glass but need something sturdier than plastic.