2 Mounting OptionsJust place the car cup holder phone mount in the car cup holder and secure it for use. It also can be effortlessly mounted on your air vents without leaving residue. Take control of your car phone holders for iphone placement with ease! Upgraded Wider Expandable BaseTECKNET cupholder phone holder for car accommodates cell phones or devices ranging from 4 to 7 inches and with widths between 2.08 and 3.74 inches. With an adjustable base and three silicone pads, this cupholder phone holder for car seamlessly fits into cup holders of various sizes in your car, truck, golf cart, treadmill, or stroller, ranging from 2.7 to 4.06 inches. Super Sturdy Adjustable ArmSturdy high quality material from the phone cup holder for car keeps your phone from shaking while driving to ensure your driving safety. The 360°rotatable phone clip and adjustable gooseneck on the phone holder car provide optimal positioning for your phone, ensuring the best viewing angle. The cellphone