This sturdy, 400mm tall glass bong has a double reinforced ‘Down-Pipe’ mount for the SG 19 / SG 14 Down-Pipe Diffuser-Adapter. As the smoke travels up, it passes through a 4-Arm Tree-Perc, making it swirle vigorously. This ensures optimum cooling and filtering of pollutants, which then settle in the bong. The smoke is then not so scratchy and gentle in the draft. Thanks to the Ice-Notches it can be chilled.