untoom’s 17mm Ball Head Car Air Vent Extension Hook is a must-have accessory for any driver who wants to use their mobile device conveniently and safely while on the road. This innovative hook attaches securely to your car’s air vent, providing a sturdy base for your phone holder or other compatible devices. With its 360-degree rotating ball head, you can adjust your device to the perfect angle and position, ensuring a comfortable and distraction-free driving experience.