Features: Secure 17mm ball head clamp ensures rock solid phone mounting during bumpy rides, featuring plastic construction and universally compatibility with most phone holder mounts. Fast release mechanism allows easy installation/removal without tools, while adjustable tension maintains grip on devices from 4" to 7" screens. Ideal for commuters, cyclists, and frequent travelers needing reliabled device stabilization in vehicles, motorcycles, or shared workspaces. Perfect for car dashboards, bicycles handlebars, or office desks where vibrations resistance and space efficiency matter most. Compact design with 360 degree rotation capability transforms any surfaces into a secure viewing station for navigation, streaming, or video calls. Specifications: Component: Plastic Size: 17mm ball head Technical parameters: Strong clamping design Use scenarios: Car navigation | Office desktop | Watch the home kitchen from multiple angles Package Includes: 1pcs Phone Mount Base note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.