Kryo - Glycerin Bubble Hand Pipe | FreezableProduct Description KRYO is a high end line of freezable glassware. Each glass piece is infused with Kryogel, an all natural freezable gel that cools down smoke to provide the smoothest experience possible while staying cold for longer. The familiar bubble style pipe has now been upgraded with all of the ice cool advantages of our freezable KRYOGEL infused glassware. The KRYO Bubble Pipe will provide the coolest hits possible from a dry pipe.