Feature:1. Replacement Prism: This is used to replace the prism of for Leica series total station, with high precise 0mm constant prism system.2. Good Stability: The prism adopts fully sealed bracket and yoke structure, which has good stability and better performance.3. ABS Shell: The total station prism adopts excellent ABS shell, with high strength, very strong and durable.4. K9 Optical Glass: The single prism uses premium K9 optical glass, features high transmittance and high hardness.5. Easy to Install: This single prism is manufactured by professional craftsmanship, with standard size, easy to install and use.Specification:Item Type: Total Station Single PrismMaterial: ABS, K9Effective Diameter: Approx.64mm/2.5inPrism Constant: 0.0mmGeosystems: AGCentering Accuracy: 2.0mmRange: 2500mRelative Tilt Axes Height: 0mm.Package List:1 x Total Station Single Prism