12" Tie-Dyed Glass Bong with Ice CatcherAttractive Tie And Die Glass Bong With Ice Catcher 12 Inches Inside the bong's core there are pinched glass structures called "ice catchers" that keep the ice above the water chamber. They are the final filtration stage before the smoke enters the mouthpiece and are often found above all of the percolators in the bong. A bong's ice catcher feature allows ice cubes to be placed in the neck of the instrument to cool down smoke, which is easier on the