The assembly instructions are very well explained and understood with pictures. The holder makes a stable impression and is securely attached at the position. I have combined the ProClip with a universal bracket from Hama, which I already had. The mobile phone is stable and vibration-free in view and can be operated properly. Directly after installation, I also dismantled the sample. Also it works without residue. The shipment of Danto done quickly and easily in appropriate packaging.