Brand new, unused SVBONY SV221 1.25-inch 90° Mirror Diagonal (SKU: W9178A) for refractor telescopes. Opened only for inspection and photos—never mounted or used. Key Features: 1.25" Standard Fit: Fits standard 1.25" telescope focusers and eyepieces 90° Viewing Angle: Makes astronomical observing far more comfortable when looking high in the sky Brass Compression Ring: Secures eyepieces firmly without scratching or marring the barrels High-Reflectivity Mirror (>92%) with M28.5×0.6 filter thread for 1.25" astronomy filters Includes: SV221 diagonal mirror, 3 thumbscrews, protective dust cap/plug, and original box.