Lavoo glass hookah tray which is hollow in the middle designed to work with all glass hookahs with a standard 19mm fit. The hollow design allows you to see your smoke swirl through the tray as it makes its way up the hookah. The connections will allow this tray to fit perfectly between the body of the hookah and bowl. This tray is the perfect add-on for any compatible Glass Hookah such as Lavoo Hookahs, Luna Hookahs and Roi Hookahs.