SUPER THICK 9mm Borosilicate Glass water pipes – simple design and their ability to give big smooth hits. These water pipes are made from super thick 9mm glass. Each tube pipe includes a diffused downstem that helps to diffuse and cool your smoke. A great feature of this tube is the ability to fit a lot of ice to cool down hits even more! Featuring a 18mm Female Joint, a 14mm Diffused Downstem and also includes a 14mm male bowl.