Four. Downstem – This is actually the prolonged glass tube that connects a bowl to some bong and directs the move of smoke in the bong’s h2o chamber. Downstems can both be “Set” (welded forever into area) or “Detachable. Đội bóng xứ Catalunya đang thể hiện phong độ "hủy diệt" https://www.lookah.com/bongs-and-water-pipes/