Features: The extended thread ball head ensures secure and stable connection for action camera, preventing loosening during outdoor activities and providing performances for sports camera mounts. Constructed from stainless steel and rubber, this camera accessory offer excellent rust resistance and wear resistance, ensuring long use in demanding environments. for photography enthusiasts and professional users, it supports various action camera models without needing extra adapters for seamless integration. for outdoor scenarios like hiking, cycling, travel vloggings, and event filming, it delivers stable footage even on bumpy terrains. With toolless installation and enhanced safety features such as rubber grip for added friction, it simplifies setups and prevents accidental slips, elevating your camera mount experience. Specifications: Materials: Stainless Steel and Rubber Combined Diameter: 25mm, 20mm, 17mm(optional) Color: Black + Silver Package Includes: 1PC Extended Threaded Ball Head 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.