The Buddy Bowl eliminates the need for retaining washers. It is bent at a 45 degree angle to conform perfectly with your Vapolution Vaporizer. The Pyrex glass walls on this bowl are 1.5mm thick, 50% thicker than the straight bowls we sell. Get a "Buddy" Bowl today and make your Vapolution experience that much better. Available in either a carbureted or uncarbureted version. The carbureted version allows for better airflow, but you lose the hands free functionality. The uncarbureted version is still hands free like the straight bowls are.