A straight tube bong is similar in functionality to a beaker bong, but it does not have a wide base. This style of bong is just a straight cylindrical tube, as the name implies. The simple design of a straight tube bong gives the user more control over the size of each pull, and the smoke produced inside the chamber is much easier to clear than a voluminous beaker bong. Straight tube bongs are also generally easier to clean. However, the smaller base makes straight tubes less stable and more prone to accidents.