The hose part is made of silicone. The handle has a freezable chamber that contains the ice cooling gel. Just throw the handle in the freezer till it's cold then screw in handle to the hose for an easy connection.
This allows the smoke to cool when passing through the handle. This cooling effect creates one of the smoothest and coldest hookah smoking experiences ever. The ice cooling hose can also be washed and is reusable. This is a great freezable hose for any hookah user!