For those who want an extra smooth smoke sesh, this bubbler is for you! Black Sheep has taken their amazing sherlock style bubbler and added an extra chamber for maxium diffusion and filtration! The first chamber contains a showerhead percolator to diffuse your smoke, followed by a diffused downstem perc in the second chamber. This bubbler is perfect for those who like to pack big bowls and take big hits! Made of high quality borosilicate glass in southern California by Black Sheep Glass.