Features • Precision Measurement Design: Features a 45-degree angle for optimal reflection, ensuring accurate readings for your engineering projects • High-Quality Optical Glass: Crafted from superior optical glass for exceptional clarity, delivering reliable and measurements every time • Versatile Application: Ideal for total station setups, this prism is for use in tunnels, subways, mines, and other engineering surveying environments • Installation: Constructed with a wear-resistant ABS plastic plate, this reflector ensures long-lasting performance and stability in various conditions • Effective Diameter Specification: With a 25.4mm effective diameter and a constant of +2mm, this prism guarantees consistent and reliable functionality in your surveying tasks Features: 1、SPECIFICATIONS: Double sides reflecting sheet prism, 45 degree angle design, with +2mm constant, and an effective diameter of 25.4mm. 2、OPTICAL GLASS: This reflector prism uses excellent optical glass, which is clear and bright, ensuring accurate and reliable measurement. 3、FOR TOTAL STATION: The 45 degree reflector prism is used for total station, suitable for engineering surveying in tunnels, subways, mines, etc. 4、INSTALLATION SCENE: This prism can be installed in tunnels, roads, bridges, dams, and buildings, used for distortion and displacement measurement. 5、ABS PLASTIC PLATE: The reflector prism adopts ABS plastic shell plate, which is wear resistant, scratch resistant, and stable in installation. Specification: Item Type: Reflector Prism Material: Optical Glass, ABS Constant: +2mm Effective Diameter: Approx. 25.4mm / 1in Application: Used for Leica total station engineering tunnel surveying Package List: 1 x Reflector Prism Package List 1 x Reflector Prism