This is the newest version of the Brass "Fauxgotti" Top Cap for the IGO-W RBA made by Cap It All Vapes.
These are now machine polished as opposed to the previous brushed finished.
This top cap has TWO air holes that are 1/16th of an inch according to the manufacturer specs.
Each one of these we sell is tested on an IGO-W for fit and also the drip tip hole is verified to work with a standard 510 drip tip.
These are sold "AS-IS", no warranty, no returns.