As money was then left for the same purchases and tried. The part has several functions:
Curls by wrapping around the bar:
Works by outstanding - the curls are beautiful and hold. Has convinced me!
Smoothing by hair pulled through the bar:
Took me unfortunately not convinced - by the slit is so small you can purely terminals only very little hair equal shows and then you have awkward squeeze at the ends while swiping. Is also difficult if you have more times with wavy hair on a strand. Here applies the plastic cap the same negative I will describe in more detail in the next section:
Curls by "Glätteisentechnik":
That was the major shortcoming, which is why I have returned the stick. You have to like the smoothing, clamp a strand of hair in the bar, then twist and pull (same technique as for the curls straighteners) - BUT! the plastic bag had pulled me to the side of the "slot" real sharp edges, thus are the same to me some hair! Not the point!
Here, the handling is awkward again, because you have to re-compress above the bar and can purely terminals only a thin strand.
My Conclusion: Can all a bit, but nothing really. The sharp edges on the plastic outer shell are a no-go. I stay for travel during straighteners.