Black Leaf Glass Bong 2x Drum PercolatorThis great bubbler bong from Black Leaf made of borosilicate glass has two drum percolators. These swirl the smoke vigorously, and make the bong water bubble properly. This results in pleasant smoke cooling and filtering. The upper percolator is fitted with a splash guard dome so no water can be inhaled. Efficient smoke cooling & filtering Robust quality Attractive design with coloured elements The glass bong is made of 5mm thick tubing, and stands