Feature 1K9 OPTICAL GLASS: The total station prism is made of excellent K9 optical glass, with careful polishing to ensure accurate and reliable measurement. 2ALUMINUM ALLOY: This prism uses excellent aluminum alloy to wrap the lens, wear resistance and falling resistance, greatly extending its service life. 3ROD SPECIFICATION: This small prism is equipped with a rod, with a diameter of 16mm and a length of 16cm, making it easy to install the prism on the device. 4WIDE APPLICATION: Widely used for detection in subways, railways, tunnels, dams, steep slopes, mines, highways, etc., with a wide range of application. 525.4MM GLASS: This prism has a glass lens with a diameter of 25.4mm, with bright texture, providing measurement accuracy and work efficiency.Item Type: Total Station PrismMaterial: K9 Glass, Aluminum AlloyGlass Diameter: Approx. 25.4mm / 1inRod Diameter: Approx. 16mm / 0.63inRod Length: Approx. 16cm / 6.3inApplication: Widely used for detection of subways, railways, tunnels, dams, steep slopes, mines, highways, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Prism1 x Cover