This Black Dome Grace Glass bong is a unique piece of glass art that can give you an uplifting hit! It is made of a high quality heat proof borosilicate glass, formed in the shape of a flat base tube. Your precious herbs are placed onto the slide bowl, coming with a handle, for easily lifting it up and cleaning it at your convenience. The bowl connects to a built-in chillum through a sure ground of 19mm diameter. Your smoke goes down to the water chamber through the built-in chillum, so that it gets filtered by a slit diffuser. A dome percolator will break up your smoke. With the Grace Glass logo featuring at the top of the tube, the whole set-up ends up in a thick slide mouthpiece ring.