Features: This flexible 17mm ball head link enables simultaneous connection for two devices, including phone holders, wireless charging stands, and magnetic mounts, for efficient multi device streaming setups. Features a width adjustable clamp that accommodates 17mm ball head accessories, allowing flexible installation for various mobile stands and secure mounting. Ideal for live streamers and tourists, with capabilities for bike attachment, providing automatic use during tasks and travel. Incorporates a split base structure perfect for travel or desktop use, facilitating simultaneous use of two phones in dense environments. Constructed from strong plastic and metal materials for extended durability, works with phone clamps, wireless charging holders, and magnetic stands. Specifications: Component: plastic + metal Ball head Diameter: Approx.17mm/6.69inch Color:Black Double 17mm ball head base clip is suitable for mobile phone clamps, wireless charging brackets, magnetic brackets Package Includes: 1 Set 17mm Ball Head Mounting 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.