This monstrous bong by Diamond Glass is not for the feint of heart! It features two percolators with amazing function to filter your favorite smoke. The bottom chamber contains a matrix perc, your smoke will then travel and diffuse through the Swiss middle chamber, the third camber is a long and wide neck to deliver the most satisfying hit you will ever have! Measures 19'' inches long and is 18mm female jointed with 18mm male bowl included. Made from the highest quality scientific glass by Diamond Glass in California.