I have several pairs of double flare plugs in 20mm, 22mm and the round black pair are 24.7mm
This is one sale for the whole lot. The resin pair were custom made by hand from an Etsy seller. The turquoise pair are REAL. They are not dyed howlite. The white pair is howlite. They have all been cleaned and sterilized and will be packaged and shipped carefully.