Use this universal carb cap/ dabber on all your dab rig bongs. This is a titanium carb cap used to cover titanium domeless nails to keep the smoke from releasing, it can be used on quartz and ceramic nails as well. The inside of the cap is built to fit both 14mm bongs as well as 18/19mm. The handle is also titanium and is built to be used as a dabber, use the opposite side of the cap to scoop the concentrates and dab with. This tool also unscrews between the cap and the dabber/ handle.