Unlike an earlier offering of McChurros in Japan (which was more like a Chinese-style fried breadstick), the South Korean menu item appears to be more in line of what we consider a churro here in the U.S. They have ridges and are covered in cinnamon sugar.
The churros are being offered for 1500 won (~$1.30 US) each.
The ad campaign for these is a little weird and seems to be playing up how the churros resemble a conductor's baton (by having a guy dress up as a conductor... from the 1700s). You can check it out below: