The top: The special, invariably flavored tobacco is packed inside this tiny ceramic bowl and a perforated sheet of foil is placed over it. The lit charcoal is placed on top of this with metal tongs. The disc as bottom sits atop the vase or water-bong portion to catch the falling embers and ash.
Nakhla Tobacco is a popular brand - and there it is - box and (full) bag. This stuff is wet. "Pickled tobacco" is more like it.
Strange flavors, but it inhales effortlessly, and cleanly - with absolutely no burning sensation. What you exhale evaporates almost instantly like freezer-fog, leaving a distinctly fruity (in this case green-apple) flavor in your mouth. Not entirely unpleasant.