Feature: 1. WEAR RESISTANT COATING: The lens is coated with oxidized plastic to ensure good wear resistance and impact resistance, which greatly extend the service life of the prism lens 2. ACCURATE AND RELIABLE: Total station prism use excellent optical glass that is finely cut and polished to ensure accurate measurements 3. STABLE STRUCTURE: The right angle prism is equipped with L shaped bracket, bring stable operation, more reliable 4. APPLICABLE SCENARIO: Right degree prism is widely used in railway, tunnel, highway, mine detection, very versatile 5. CLEAR AND ACCURATE: Enhance the reflection ability of prism, possess full texture, clear and bright, improve the accuracy of measurement, measurement work become more simple Specification: Item Type: Total Station Prism Material: Optical glass and ABS Specification: Basic model Constant: -25mm Effective Diameter: Approx. 25.4mm / 1in Application: Tunnel, subway, mine, highway and other detection, suitable for Leica and other measuring instruments Use: Widely used in subway, railway, tunnel, dam, steep slope and other industries. Package List: 1 x Total Station Prism