New style 14mm to 14mm downstem bong accessory tool, it features the 4-arm tree perc which offers better cooling experience. There are also different sizes to choose from 2 inch to 6 inch. 2 inch, 2.5inch, 3 inch, 3.5 inch, 4 inch, 4.5 inch, 5 inch, 5.5 inch, 6 inch. 

Both joints are 14mm, work with any 14mm female bongs bubblers galss pieces.