Feature:1. [High Precise] This corner cube prism with the diameter of 1 inch (25.4mm) provides precise measurement and efficient performance, ideal for various applications.2. [Optical Glass] Crafted with optical glass, this prism undergoes meticulous polishing to achieve a bright and glossy finish, enhancing the overall aesthetic appeal.3. [Protective Coating] The prism features a uniform and smoothly surface coating that not only adds a layer of protection to the glass, but also ensures long lasting durability.4. [Standard Size] Strictly manufactured, this corner cube prism has high standardization, with precise size and shape, can seamlessly fit various instruments.5. [Long Lasting] Designed to withstand wear and tear, this trihedral retroreflector is built to last, providing enduring performance even in demanding environments.Specification:Item Type: Corner Cube PrismMaterial: Optical GlassAperture: 0.2-1Irregular Aperture: 0.1-0.3Clarity: 60 40Total Angle: 2-8secDiameter: Approx. 25.4mm/1in.Package List:1 x Corner Cube Prism