Book and folder rack for Leitz and Musikark

This is a simple but effective and stable book or folder holder. It can be used to place sheet music in a Leitz folder on top of a piano, but can of course also work with other hardcovers with a thickness of approx. 3 mm. The holders are designed so that the center of gravity should lie in the middle of the baseline for maximum stability. Print two instances, one mirrored.