This Magnetic Car Phone Holder Firmly Secures Your Smartphone On Air Vents For Hands-Free GPS Navigation, Phone Calls, Music Enjoyment, Instead Of Holding On Hands, Which Prevents You From Breaking Road Laws And Offers A Safer Driving Experience. The Magnetic Air Vent Car Holder Features Simple & One-Hand Installation. Just Clip It Onto Car Air Vents And Attach The Phone To The Magnetic Surface. Keeping Hands On The Steering Wheel Greatly Promotes Driving Safety.