Quartz Bangers provide a distinctly clean-flavored hit and good heat retention. The hefty-sized bucket allows you to dab large amounts of wax in a single session without losing any. This 18mm male quartz banger fits 18mm male joints on your bubbler pipe or dab rig. The heat retention with the 4mm thick, clear bottom is impressive. The built-in round bottom helps keep the oil centered where you want it and makes clean-up easier