Double Barrel Curling Iron What Is The Largest Size Barrel You Can Get On A Curling Iron?

What is the largest size barrel you can get on a curling iron? - double barrel curling iron

My aunt has a big curler that smooths the hair and adds essentially a curve at the end. It is larger than 2 cm, more than twice the size of the barrel. She does not remember where it was purchased, and no traces on the plate more. I tried online with no luck. Someone saw a curling iron, as big as this? It (the width of a large round brush) is If yes, where did you see? What was the brand? Or do you know the exact size or gun, where I could look like a curling iron of this size to be found?