The Tsunami Showerhead Grenade Turbine Water Pipe 12″ is made of premium clear, thick, and durable borosilicate glass. These series of pipe have a very unique construction; the herb bowl is 14mm long, smoke crosses the fixed downsteam of Turbine Water pipe and streams directly into the high-quality showerhead diffuser. Then, in order to cool, filter and clear the smoke, in this section, a large amount of bubble motion occurs simultaniously. And this is where the percolation starts via triple strength of three percolators. In the turbine disk, smoke twists into a whirlwind to be smoothed and softened before you inhale.