1) Stretchable clamp suitable for smartphones with width between 3.5 inches to 5.5 inches 2) Padded back and holder arms with soft rubber to protect phone from scratches and potential damage 3) Works With All the Cell Phone:suit for Iphone 6/6S/6 Plus/6s plus and Many Other Devices 4) Adjustable full 360-degree rotation for the perfect viewing angle