Features: The universally car phone holder mounting bracket has a sturdy and wear resistant base and adhesive pad, ensuring the safety of your phone while driving. It is suitable for phone clips, tablet clips, magnetic phone holders, navigation stands, and more. To install 17mm/20mm/25mm ball heads, this bracket can be used with various phone stands, clips, and other accessories. Very suitable for driver, photographers, and live streamers who require stable equipment installation solution. Very suitable for use in cars, desktops, or any flat place that requires convenient use of mobile phones or tablets. This car phone holder is easy to install and has universally compatibility, making it a must-have accessory for anyone who wants to enhances their experience. Specifications: Component: Plastic + Aluminum Alloy Base diameter: approx. 90mm/3.54'' Ball head diameter: 17mm/25mm/20mm Package Includes: 1Piece Adhesive Ball Mount note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.