Features: Enhances device setting with our 17mm ball head installation splitter adapter, converting a single to a double connection to provide installation solution. This black adapter is crafted from plastic and features 1/4inch internal threaded holes and double 17mm ball head. It also supports 17mm female ball head to double 17mm ball head, ensuring compatibilities with various phone and tablet holders. Very suitable for individuals, content creators, and professionals who need to install multiple devices simultaneously to achieve efficient multitasking. This adapter is perfect for use in car, desktops, or during live streaming. It allows you to secure connect two devices to the base and supports 360 degree rotation, maximizing your workspaces and convenience. With its universal design, this adapter seamlessly integrates with car phone stands, tripods, desktop stands, and live streaming setting, making it important accessory for enhancing the mobile device experience. Specifications: Material: Plastic Color: Black Ball head diameter: 17mm Mainly used for 17mm mobile phone live stand car bracket tripod Package Includes: 1Piece 17mm Ball Head Joint note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.