Features • High Precision Measurement: The optical glass ensures accurate measurements, enhancing clarity and reflection for reliable surveying results • Durable Construction: Made from stainless steel, this tool offers exceptional resistance to wear and tear, ensuring long-lasting performance in various environments • Versatile Functionality: Adjustable circumference allows for drawing and measuring circles, making it ideal for diverse surveying tasks • Lightweight and Portable: Compact design makes it easy to carry, enabling quick setup and use in the field without hassle • Easy Installation: Designed for seamless integration with various surveying equipment, ensuring compatibility with multiple systems for efficient use Features: 1、FINE POLISHING: The optical glass lens is carefully polished, the of the uniform fine coating can ensure the quality of the lens 2、BRASS ADAPTER: The single prism has a brass threaded adapter that can be attached to any 5/8in x 11 threaded rod or tripod 3、PROTECTIVE HOUSING: The prism is equipped with aluminum alloy protective housing to ensure that the glass prism part is protected from wear and extend life 4、APPLICABLE SCENARIO: Single tilt prism can be used for tunnel, subway, mine, highway, etc. Applicable to measuring instruments 5、WIDE APPLICATION: Single prism is widely used in railway, dam, steep slope and other industries, useful and practical Specification: Item Type: Single Tilt Prism Material: k9 optical glass, ABS Effective Diameter: Approx. 64mm / 2.52in Constant: 0mm/-30mm Scope of Application: Tunnel, subway, mine, highway and other detection, suitable for other measuring instruments Usage: Widely used in subway, railway, tunnel, dam, steep slope and other industries Package List: 1 x Mapping Prism Head 1 x Lid 1 x Storage Bag Package List 1 x Mapping Prism Head 1 x Lid 1 x Storage Bag