Features: This 360 degree rotating super clamp with a 17.4mm ball head offer universally compatibility for magnetic phone holders, tablet mounts, and navigation brackets, featuring a 5cm grip capacity for flexible device positioning. Crafted with iron construction and a 1/4" female screw base, the clamp enables seamless 360 degree rotation and adjustable angles while securely attaching to surfaces up to 5cm thick. Ideal for content creators, driver, and home users seeking reliabled mounting solution for smartphones, tablets, or LED lights during streaming, navigation, or hands less tasks. Perfectly adapts to car dashboards, studio desks, kitchen counters, and tripods, providing stable support for devices in dynamic environments like live broadcasts or road trips. Its interchangeable 17.4mm ball head design ensures quick compatibility with most phone holder clamps and accessories, simplifying multi device setups without tools. Specifications: Component: Iron Size: 10.5x7.5cm/4.13x2.95inch Screw length:7.5cm/2.95inch Color:Black can clip objects with a thickness of 5cm maximumly Package Includes: 1 Set 360 Rotating Metal Clamp 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.