Features 【Professional Replacement for Surveying】This total station prism with light is designed to replace original prisms, offering a professional-grade solution for surveying tasks. Easy to install and compatible with 20# male thread components, it’s for field engineers and surveyors. 【Enhanced Reflective Optical Glass】Made with high-quality optical glass, this 64mm prism delivers strong reflection for clearer, brighter measurements. Ideal for subways construction, railway alignment, and tunnel inspections, ensuring precision in every project. 【 ABS Protective Casing】The ABS casing shields the optical glass prism from wear and tear, extending its lifespan for long-term use in harsh environments like steep slopes or dam inspections. 【Versatile for Multiple Surveying Applications】From subways and railways to tunnels and dams, this surveying prism adapts to diverse projects. Its compact design and high-reflection capability make it a tool for accurate measurements. 【Lightweight & Portable for Field Use】Weighing just 0.5 lbs, this prism with light is easy to carry and set up. Includes a storage bag for convenient transport, making it a must-have for on-site surveying professionals. 1. [Professional Replacement Prism] This prism with light is used to replace the original surveying prism of the total station, professional and standard, easy to install. 2. [Wide Application] This prism can be used with a total station for various surveying tasks, providing versatility and convenience in different surveying projects. 3. [Enhanced Reflective Ability] The mini prism is made of optical glass, enhancing reflective ability for clearer and brighter measurements, ensuring accuracy. 4. [ABS Casing] Equipped with ABS protective casing, this prism ensures that the glass prism part is not worn, thereby extending its lifespan for long term use in the field. 5. [Versatile Usage] Ideal for use in subways, railways, tunnels, dams, steep slopes, and other locations, this prism offers performance and accurate measurements for a wide range of surveying applications. Spec: Item Type: Total Station Prism with Light Material: Optical Glass, ABS Effective Diameter: 64mm Use: Suitable for Components with 20# Male Thread Battery: 3.7V Lithium Battery x 1 (Not Included) Package List: 1 x Total Station Prism with Light 1 x Storage Bag Package List 1 x Total Station Prism with Light 1 x Storage Bag