The Cheech 8-inch Glycerin Bubbler does its cooling differently. The body and bowl are filled with glycerin, a gel that holds cold well, so you pop the piece and bowl in the fridge or freezer before a session, then fill the chamber with water as usual. Once chilled, the glycerin cools the smoke on contact, which makes even big pulls feel smooth and easy. Inside, a showerhead percolator filters the smoke for a cleaner draw, and the narrow mouthpiece keeps the airflow controlled. It's built from 4mm glass, so it's sturdy for its size, and the green-blue glycerin gives it an icy look. At 8 inches it's compact and easy to handle. A good pick if you want the coldest hit without packing the neck with ice.