I have a syrina stem (af hookah) that I put in a bohemian glass. I have it under one one the pics in my album. The difference i have noticed is thet bubbles are alot smoother/softer than with a big egyptian. I have been using it for a few days now and like it. I am so tempted to take one of the ones of the shelf and try it. I think they would perform even better since mine doesn't go deep enough in the base. These new ones do, mainly due to the bases being smaller.