Mouthpieces are primarily used by Hookah Bars, and are also used with Multiple Hose Hookahs for sanitary purposes. Mouthpieces are disposable plastic pieces that insert into the end of the Hose, allowing for more than one person to smoke with the Hookah at a time. Mouthpieces also regulate the amount of smoke that normally comes out of the Hookah, allowing for a more pleasant smoking experience.