The bowl is a real bowl in a cap, and its perfect for a grav/waterfall bong. standrd cap,ready to go haha. Just one q, how big of a hole do you make for a 20 oz waterfall? I made my hole too big i think, the water ripped out too fast, but it burned the kief really fast and good so i guess i dont mind haha anyway this is awesome, i took 3 tiny hits, however they were kief. this is seeming to be a pretty decent high, so far, im enjoying it.