It is user-friendly as it is bent freely and maintains its shape. The base is made of resin and it is fixed by clamp or double-sided tape, but if it is a little weighty metal item, it is likely to be used just by placing it.
Although it is a phrase that says to turn freely, 1. The thickness of the desk is limited when clamping the base on the workbench. 2. Even when inserting the arm into the base, every hole wobbles because it is loose. 3. The fixed place of the base is limited. In the attached double-sided tape It is nothing 4. It does not stop freely freely at the thought position on the material of the arm (back) = 2 plus This is the most negative point, after all, the support stand and the tool clip used until now have become independent and at which position on the desk It can be placed and the positioning is solid, so it is still good (should choose heavy bases), we spent wasted money.