Just one piece I couldn't figure out

I bought this music stand for my niece who is in high school level band. It came in a nice carrying bag which will be useful to her because she plays about anywhere she can. At first glance I didn't think this music stand would be as big as it was but after unfolding it, it is roughly the same size as a regular music stand that you would find in any music store. The only problem I had was trying to figure out how one of the "sheet of music holder", while one worked the other one was too far out to hold anything but was still in the same position as the holder on the opposite side.

#RankBoosterReview #Sponsered #Mugig

https://www.amazon.com/Mugig-Music-Folding-Holder-Instrument/dp/B072JF8V5H