Feature 1Excellent Aluminum Alloy Material: This total station rotating optical prism is made of excellent aluminum alloy material wrapped around the lens, which is wear resistant and drop resistant. 2Rotating Protective Cover: This total station rotating optical prism features a rotating protective cover that can be rotated to easily expose the pentagonal prism and allows front view viewing through the center lens. 3Handle Design: This total station rotating optical prism features a handle design with a slot in the handle for mounting a plumb for Bob line center lens for forward looking observation. 4Wide Application: This total station rotating light prism is widely used in subway, railroad, tunnel, dam, steep slope and many other industries. 5Leather Sleeve: This total station rotating light prism comes with a leather sleeve that can be used to store the prism when not in use to prevent it from being scratched.Item Type: Total Station Rotating Optical PrismMaterial: Optical Glass, Aluminum AlloyApplication: Tunnel, Subway, Mine, Highway and Other Testing, Applicable to for Leica and Other Measuring InstrumentsUse: Widely used in subways, railroads, tunnels, dams, steep slopes and many other industries. .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 Total Station Rotating Optical Prism1 x Leather Sleeve