Flashes are secure and meet optimally the Schrim

Ingenious products by 3 flashes to assemble in a large screen. The flashes are well laid out and hold bombproof. I use the Youngnuo YN560 with metal base where I have no doubts as to clamp it firmly. Thread at the bottom of the 4th page can be screwed onto the screen Eiger.
However, the screen does not stop right in the middle, as one might think on image, even makeshift he remains indoors, but it lacks the locking screw. Therefore the Refelx Schirem is fixed on the screen Eiger with me including. The lightning hit but still optimally in the screen! Due to the reasonable price but still 5 stars!