Grav Wobble BubblerThe wobble bubbler is a wonder of clever minimal design. At its core, this bubbler pipe is built for easy use and maximum stability. The heavy borosilicate glass bottom contains a fixed downstem with four holes that filter and percolate your hit. The domed top of this bubbler fills with swirling smoke when in use. The angled straw mouthpiece focuses the flavor of your hit and allows for a quick inhale once you pull the bowl. The Wobbler has great