The glass bong Inline Pack by Weed-Star has got an 18/8 cut and a height of 31,5cm. The special thing about it: The bong has got an inline slithole diffuser that swirls the water while smoking. That makes it cool and nicely smooth. The provided small downtube has got a female 18/8 cut.
Diameter (tube): 2,9cm
Diameter (base): 11,7cm