Holder is not bad but eigendlich too expensive. Workmanship is good - robust materials and makes quality impression -Halteklammern are well padded and holding mobile phone without any problems. By extension, even in low place in the car, for a holding may be used. the suction cup could have better suction. Well, even without extension nutzbar.Für our cars not particularly to gebrauchen- Corsa C - everything is a little rounded, therefore the suction cup holds not. Then ought to make the disc, but just because I did not want to, I bought the holder. On top of dashboard bothers mciht the part also. After initial enthusiasm but unfortunately disappointed. Is constantly energized. Have now bought holder for 7 for sticking, which is about 2 cm wide and has rubberized clamps. For Kleben.Passt almost anywhere - holds - interferes nicht.- therefore for the Oso OS1380B only 3 Sterne.Andere might have had better experience. I would not buy it. Conclusion: well made - extension / available without extension - Material ok - retaining clips well padded. Negative: Price / squeegee to low suction / not for all driving courses available.