Grav Labs steamroller pipes are made in the same laboratory-grade borosilicate glass as their larger tubes, though the existing-university snap of a handheld dry pipe!
This steamroller is actually 45mm wide and has a great 14.5mm glass-on-glass joint. Two glass feet enable you to safely arranged this lower on a flat surface, and a carb gap on the left in the tube aids you control your toke. A good 14.5mm funnel bowl is actually included. A color Grav Labs decal is actually applied in black, blue, red, green, or etched, as offered