Why can't I find the T3 curling iron barrel in size 1.5 inch??

I've been looking for the perfect curling iron and my friends speak highly of the t3 curling iron. I want the 1.5 inch barrel (38mm) but can't seem to find it anywhere?? Not in a sold out way, like no one anywhere is selling it and it's not even an option on the website itself. Yet everyone on tik tok seems to have it?? I looked on eBay, google, even depop. Why can't I find it anywhere?? Was it a one time thing and I missed it?