Features: This ball head adapter offer 360 degree rotation and metal construction for secure positioning in photography setups, featuring 17.4mm ball head and 1/4" 20 UNCs thread compatibility. Equipped with single lock knob for firm angled fixation, it includes 1/4" 20 external thread and 17.4mm ball head connector, allowing flexible adjustments mounting for devices like phone holders and tripods. for photographers, vloggers, and live streamers seeking adaptable accessories to enhances their shoots experiences with stable, multi angled support. for use in scenarios such as live streaming, video recording, vlog, or mounting smartphones, tablets, and cameras on tripods for dynamic photography. With its plastic and metal build, this adapter ensures quick, safe operations and broad compatibility, making it for photography accessories in various creative projects. Specifications: Materials: plastic + iron Length: 8cm Interfaces: 1/4 male screw, 17.4mm ball head photography bracket adapter Package Includes: 2Pcs 1/4 Male Screws to 17.4mm Ball Head Adapter note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.