Features: This 17mm metal nut and ABS threaded base set works with various mounts including phone holders, tablet clamps, car charging stands, navigation devices, and more. Suitable for magnetic, suction, and streaming mounts. Produced from strong aluminum mixture and plastic, this set provides extended use. The metal nut includes a 17mm ball head for secure attachment, while the ABS base ensures stable support. Developed for simple installation, this accessory is straightforward to use and serves as a useful spare part. Its standard size works with most rotating mount products available. Ideal for car phone holders, tablet stands, navigation equipment, and recording devices. The 17mm ball head adapter allows smooth switching between threaded and ball head mounts. This set combines practicality with visual appeal. The metal shell possesses a 2.8cm diameter for a neat and dense build. Specifications: Component: Aluminum Alloy, Plastic Color: 3 color optional Diameter: 2.8cm/1.1in Package Includes: 1pc Ball Head Metal Nut 1pc Screw Base note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.