Stable Viewing: Dual ball joint design allows multidirectional rotation to find the viewing angle from any seat on the plane. Secure Grip: Strong yet flexible arms keep your phone firmly in place during takeoff, landing, and turbulence for hands viewing of movies, maps, or messaging. Universal Clamp: Opens to accommodate a wide range of phones. Size and Device Compatibility: Suitable for devices from 4.7 inches to 6.9 inches; compatible with iPhone, Samsung, Android smartphones, and most other mobile devices. Use Scenarios: Inflight entertainment: adjust the angle for comfortable viewing of movies or maps while keeping hands . Travel navigation: use maps or GPS apps with hands convenience during trips. Desk or bedside use: set on a table or nightstand for hands video calls, tutorials, or viewing videos.