After we had ordered from another manufacturer, the pleating was sent back because of bad quality. But this is absolutely pleated top, one should remember that the Klemmfixhalterung can stick out the pleated about 1.5cm from the windows only. (We did but it did not bother as the good workmanship makes this Markel betting :) The enclosed assembly instruction describes only the screw in the window frame. On YouTube, there are outstanding Installation Guide (Installation with Klemmfix-clamp holder), the assembly is in max.15 min. done. Can thoroughly recommend the pleating.