Although the average size of a single Shiazo Shisha Steam Stone is larger than the average sized hole at the bottom of traditional hookah bowls, for the best results it is recommended to use a hookah bowl that has a raised center, such as a Phunnel Hookah Bowl or a Vortex Hookah Bowl. These types of bowls prevent the fluid and smaller stones from falling down into your hookah stem, as well as allowing the stones to “stew” in the fluids more effectively. Shiazo Shisha Steam Stones are currently available in over 30 delicious flavors to choose from that do not contain any tobacco, nicotine, sugars, molasses, or artificial dyes.