Glass 5mm Clear Ball Cylinder BongThis 5mm thick Clear Ball Cylinder bong by EHLE Glass combines elegant design with high quality materials to get the perfect smoking performance. The 5mm thick glass is high grade borosilicate and the EHLE logo is sandblasted, while the round foot is a as solid and sturdy a base as you will find. The ball, or bubble, at the base of the cylinder greatly increases the water volume capacity. The pinpoint precision joints of EHLE glass water pipes are