The Provost is the perfect addition to the AOT bowl or any other bowl. This device acts as a wind cover, foil replacement, and a complete heat management device. It gives you the ability to adjust the venting system to manage the heat to your preference. This device will trap and enclose the heat from your coals inside, which will allow greater control over how your bowl burns. If you realize your bowl is burning a little too hot, you can simply open the vents to cool it down. Please note, the Provost doesn't have to be used with the AOT bowl; it will work with almost any hookah bowl.