... most kinds of windshield mount,7.Weighted with anti-skid silicon base8.Conforms to different dashboard9.Portable and stowable, keep out ... .Outer diameter:165mm.3.Material:spandex, ABS plate, steel balls, silicon.4.It suits 4.3",3.5",2.8",cell ... -40celsius degree.7. Steel balls:100% Universal GPS cushion/Car Holder for iPhone/Car Holder for iPhone Universal Device ...