Material: metal Model: ray mirror Drum diameter: 31.7 mm (1.25 in) Positioning hole: 2 mm Key benefits - Durable metal construction provides stable alignment and reliable performance. - Specifically designed for sun positioning and coaxial calibration between a ground target and the main mirror before solar observation. - Precise dimensions and a 2 mm positioning hole support accurate setup and repeatable results. - Includes zenith mirror and protective packaging for convenient transport and storage. - Professional and practical design with a clean appearance that is easy to carry and use. Specifications and compatibility - Product model: ray mirror - Material: metal - Drum diameter: 31.7 mm (1.25 in) - Positioning hole: 2 mm - Accessories: zenith mirror, packaging What you get - Ray mirror fitted for sun positioning and coaxial calibration - Zenih mirror accessory - Packaging for protection during transport Use scenarios - Pre-solar observation: Use the ray mirror to perform coaxial calibration between a ground target and the main telescope mirror before observing the sun, ensuring alignment accuracy. - Field solar setup: Deploy in outdoor solar observations to quickly position and align the optical path for reliable sun tracking and imaging. - Laboratory or classroom demonstrations: Leverage the portable, professional design to teach or verify alignment procedures, with the zenith mirror and packaging aiding quick setup and safe handling.