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The steamroller is a pipe designs and Grav Labs have added their own style to the smoking device. This borosilicate glass pipe is durable. Coming with the carb hole, the user controls the length of their pull.
The carb hole on the bong allows you to control the length of your hit.
This is there so that it can catch the ash that falls as to not ruin your experience.
The Grav Labs logo is written down the side of the glass bong, and it comes in; white, blue, green, black, and red,. This is a striking piece that will make a great addition to any collection or a particularly good looking starter bong.
The piece is made of really high grade borosilicate glass. It involves the adding of the chemical Boron which helps to reduces the stresses made by temperature gradients.