The set is a bit "clumsy" in medium quality plastic. The opening mechanism (when stretched) leaves appear the springs at the rear, and does not give absolute confidence in life. But everything works properly (especially the opening is generous for large smartphones). The price is very correct (7), remains to be seen if the value is too, over time. I also have the Kenu airframe model for another vehicle that is incomparably better (though three times more expensive).