This Reversals Grace Glass bong is made of a high quality heat proof borosilicate glass, formed in the shape of a cane tube. Its unique feature is the double drum percolator that bubbles up your smoke, thus offering you a cooler and smoother toke! You can place your favourite herbs or tobacco on the bowl that connects to an inbuilt chillum through a sure ground of 18,8mm diameter. With the Grace Glass logo imprinted at the top of the tube, the whole set-up ends up in a comfy mouthpiece ring.