Features 1、GREAT REFLECTION: This survey prism is designed for excellent reflection, largely improving the measurement imaging and accuracy. 2、OPTICAL GLASS: This prism uses optical glass, which enhances reflection ability, with full texture, clear and bright, making the measurement more accurate. 3、WIDE APPLICATION: Total station prism can be used for tunnels, roads, bridges, dams, buildings or some other fixed places or objects to measure distortion and displacement. 4、LONG LASTING: The total station prism is made of aluminum alloy material, which is sturdy and firm, not easily be damaged, ensuring long lasting use. 5、EASY INSTALLATION: Comes with a compact size and a light weight as well, the prism reflector is very convenient to install within minutes. Specification Item Type: Total Station Sliding Prism Model: ADS103 Material: k9 glass, Aluminum Alloy Application: For the testing of tunnels, subways, mines, highways, etc. Suitable for measuring instruments such as for Trimble. Usage: Widely used in various industries such as subways, railways, tunnels, dams, steep slopes, etc. Package List 1 x Total Station Sliding Prism 3 x Sounding Rod 1 x Cover 1 x Spring Hook 1 x Accessory 1 x Storage Bag