Ultra-stable gravity-based car phone holder with one-handed operation. The weight of the phone activates the grip, allowing easy one-handed installation and removal. Note: horizontal orientation is not supported. 360° rotatable with length and angle adjustment. The flexible ball joint lets you rotate the phone a full 360 degrees. Use the angle and length adjustment knobs to set the perfect height and viewing distance for your needs. No blocking and compact when not in use. The collapsible design stays out of the way and does not block the car vents. It keeps the ventilation system unobstructed, helping the phone stay cool in hot conditions and avoiding overheating when needed. Full protection for your device. The kickstand arm and foot are lined with soft, elastic silicone pads, and the thick shockproof design protects against scratches and drops, reducing impact from bumps and vehicle movements. Sturdy metal hooks for firm attachment. The hook length can be adjusted by turning the knob, securing the holder firmly to the vent blade. The metal hook is strong and durable, resistant to breaking, and prevents the holder from loosening on uneven roads or during sudden maneuvers, enhancing driving safety. Use scenarios: - Daily navigation and hands-free calls in portrait orientation, with quick one-handed access. - Long trips on uneven roads, where the gravity grip maintains a secure hold without readjustment. - In vehicles with mounted vents, keeping the phone within easy reach while maintaining proper ventilation and avoiding overheating.