Pocket bubblers are versatile, portable, and fun! They can fit a 10mm flower bowl, a 10mm quartz banger for concentrate, or even a well-rolled joint or blunt. The bubbler chamber adds a little water filtration while still keeping the piece nice and compact. The upright bubbler has a natural perc and a little more water capacity than the other pocket bubblers. It also has a smaller footprint and fits more comfortably in a pant pocket.