The hand pipe is a primitive smoking tool with a bowl and a reservoir leading from the cavity to the user’s mouth. Some pipes are more advanced and have a hole in the side that allows for air intake, this hole on the side is called a carb. Covering the carb allows a hit build up in the hollow of the pipe. Releasing the carb pushes all the smoke at once to the user as opposed to a long drag.
To smoke dry herbs, tobacco, or other legal substances out of your hand pipe, you simply need to pack the material into the bowl chamber, ignite with a flame, and go!