This single bubble is made up of very steady and compact glass. Bit bigger than the small glass bong and come in a handy size. The devices is designed to offer greater convenient and grip. The bottom of the bong is round and spacious enough to contain more water. The top of the bong is slightly bent so that it could be put to the mouth easily. The best part of this bong devices is that while heating the glass, it doesn't emit harmful emissions and addition to that glass water pipes are also easier to clean.