GRAV Labs has some of the nicest scientific glass pipes on the market and this 8" bubble base bong is a perfect example of that. It is crafted immaculately and is prefect down to every detail. It has a diffused down stem and features a cool pinch ice catcher. The joint size on this bong is 14mm. Please note that the GRAV logo on the bong varies in color and is chosen at random.
