This sturdy, 400mm high, 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 passed through a 4-Arm 'Tree-Percolator', making it swirled 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.