This car phone holder features the latest hook clip design and can be securely attached to air vents. It holds your phone tightly even on turns, bumpy roads, speed bumps, and roads with potholes. You don't need to worry about your phone falling off while driving.Press the release button on the back of the holder to open the clamp arms. Then, place your phone and squeeze the clamp arms to lock it into place. This allows you to insert and remove your phone with a single hand while the holder provides a firm grip on your phone. This provides safer driving whether you are navigating, playing music, or charging your phone.The air vent phone holder features a 360 ball joint that assists in adjusting the viewing angle for a clear screen view in either landscape or portrait mode. The holder also has a non-slip fingerprint area on the side clamps, making it easier to hold your phone with one hand.With built-in gear upgrades, the car phone holder support plate and feet have non-slip silicone pads. The arms feature notched soft silicone, which not only increases the grip of the phone to ensure safe driving, but also effectively protects your phone from bumps and scratches. Your phone won't fall even on rough roads.The phone holder is compatible with all devices between 4.0-6.7 inches, including iPhone, Samsung, Xiaomi, OnePlus, and HUAWEI. Please note that the holder may not be compatible with phone cases that are too thick or rough, like Leather Flip Wallet Covers, Covers for a Quad Lock, Heavy Duty Cases, etc.