Features: This versatile 17mm ball head + double 1/4in male screw conversion base seamlessly connects tripods, magnetic phone holders, tablet clamps, and cameras for multi device compatibility in professional setups. Crafted with plastic metal construction and optimized dimensions, it ensures stable support while maintaining portability for photography and live streaming gear. Ideal for content creators, vloggers, and technicians needing double device mounting for cameras, smartphones, and monitoring equipment during extended operations. Perfect for studio photography, outdoor live broadcasts, or security systems installations requiring simultaneous mounting of multiple devices with standard 1/4in screw compatibility. Features easy installation with screw interfaces, enabling rapid equipment swaps between angles while maintaining vibrations resistant stability for professional workflows. Specifications: Component: Plastic + Metal Size: about. 27x3.2cm/10.63x1.26in Interfaces: 17mm ball head base Package Includes: 1pc Bracket Stand 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.