Constructed from premium BK-7 optical glass, ensuring superior clarity and high transmittance across U-V, visible, and near-infrared wavelengths. devised with precise dimensions (20x20x20mm) and high accuracy (±0.1mm shape tolerance, ±3' angle error) for reliable optical performance. Effectively deflects light by 90°, making it ideal for applications requiring image/beam offset and left-handed image orientation. Resistant to mild chemicals and U-V radiation, ensuring durability and longevity in various environmental conditions. Widely used in optics, including lenses, windows, and other optical elements, suitable for both educational and professional applications.