Easy Installation & Stability – Includes a built in connecting rod for quick and secure mounting on points or reflective frames, reducing measurement errors caused by displacement Visual – Equipped with professional Visual glass Device for high reflectivity, ensuring stable Signals transmission to total stations and accurate distance / Angles measurements with minimal error Versatile Measurement option – multiple constant specifications including 17.5Mm, 0mm, and 30mm to suit different total stations and measurement scenarios, providing flexibility for various engineering needs Portable & Protective Storage – Comes with a storage Storage for carrying and Protect against impacts, making it perfect for outdoor construction Site and surveying tasks Accuracy L Shape Design – Features an L Shape right Angles structure for close fitting against corners and edges, ideal for narrow or hidden spaces like tunnels, Base, and building edges, Manufacturer: Tsophreniq