One hitters are handy little pipes that allow a smoker the opportunity to take a hit or two, quickly, without having to be too conspicuous. While they can go by any number of terms the general rule is that a one hitter is small, thin, and easily concealable. One hitters can be made of glass, ceramic, metal, wood, etc. There is not any one type of one hitter that is better or worse than the others – it all comes down to preference. Overall, best if looking for maximum portability and concealment.