This holder had some long, sharp edges from the molding, with no practical purpose. They are uncomfortable to touch, and I fear it is possible to cut through the skin on fingers with these edges. Not pleasant at all, and not helpful to hold a microphone in place, and I even fear it may scratch the surface of a microphone handle.
I would much prefer more a more rounded shape of the ends and edges. That will probably also make it easier to push a microphone handle into the clip/holder. By "rounded" I am thinking of a bending radius above 2 to 3 mm.