Zong Water Pipes by Echo Glass Pipes for only $74.99. About 17'' long with a 'Z' shaped natural percolator. As the smoke travel through 'Z' percolator it cools down and gets mellower and therefore easier to inhale. It is a three dimensional 3D water pipes. As the smoke travel through 3D natural percolator of water pipes it gets more time to cool down and makes your smoke easier to inhale through these water pipes. Great buy.