Four. Downstem – Here is the long glass tube that connects a bowl to a bong and directs the movement of smoke to the bong’s h2o chamber. Downstems can both be “Set” (welded forever into spot) or “Removable. Đội bóng xứ Catalunya đang thể Helloện phong độ "hủy diệt" và https://www.lookah.com/bongs-and-water-pipes/