19mm ID 22mm OD
"Herbiii and it's little brother Waxii are - so I hear - dry herb and concentrate vapes, respectively from "dazzleaf", one of the many also-ran vape brands. This glass mouthpiece is suitable as a replacement for any vape that uses a 19mm, o-ring friction connection to a mouthpiece (this would be about 19.3mm measured from tops of o-rings - it fits perfectly on my Gnome Dome, which has 18mm diameter metal part with 0.75mm deep 1.4mm wide grooves for the two 17 OD x 1.5mm. ) 19mm is a common size for this sort of part, possibly the third most common size - though be warned that the most common size is just 1mm larger - this isn't that size. It won't fit a Divine Tribe or Sai atomizer, for example."
