The phone holder for car has the vertically & horizontally curved design, clips the top lid tightly with the strong teeth HUD Simulating. The phone clamp holds smart phone right above the dashboard & wont obscure the road view for safe driving (NOT suitable for short person) Big Clip. The mobile phone clamp arm opening up to 3.15inch (80mm), Suitable for most mobile phones which Width 3.15inch (80mm), like iPhone & Samsung smaller than 6.5inch 360 Degree Rotatable. Its easy to rotate from portrait to landscape. No tools required to install the car accessories with one h&, also easy to remove when not use