This two-piece ball head adapter set includes a 17mm ball head interfaces and a 1/4-20 threaded interfaces, seamlessly compatible for tripods, portable displays, tablet stands, stands, phone clips, cameras, motorcycle sports cameras, and webcams The standard 1/4-20 threaded interfaces can quickly connection to standard tripods, monitors, and sports cameras without the need for any tools. Simply tighten it to easily secure your device live streaming accessories, 17mm to 1/4 screw adapter is compact and lightweight, making it great for creating installation solution Whether you need to install a phone, tablet, camera, this adapter is perfectly compatible. It is an essential installation accessory for content creators, cycling enthusiasts, and technology enthusiasts Specially designed for mobile use, compact and lightweight, it is great for travel, video blogging, photography, and motorcycle riding. Make your device flexible and