This is a well engineered product, very versatile, each partition can move up or down and tilt. Saves considerable space compared to other options. This is holding four keyboards and a desktop module with the addition of an extra pair of arms.
Assembly instructions are very poor though, but the photo showing on half of the stand lying flat on the floor is the way to get the two sides together. I managed to do it myself, but an extra pair of hands might be useful'