Featuring a large 60x60mm surfaces area for broader spectrum coverage, lightweight design at just 2.2g for easy portability, and strong PET component construction for excellent effect resistance and long term reliability in various settings Achieve unparalleled accuracy with our high accuracy PET transmission diffraction grating, crafted using advanced technology for fine grooves and clear stripes to secure accurate experimental results in visual applications enhances your visual toolkit with this versatile PET grating sheet, combining superior functionality and robustness to professional and educational endeavors Perfect for spectroscopy experiments, classroom demonstrations, laboratory research, and artistic installations where stable diffraction grating enhances light splitting effects and visual outcomes Ideal for educators, students, researcher, and artists seeking a dependable visual instrument for hands on learning, scientific exploration, and creative projects requiring precise light manipulation, Manufacturer: HUAJINGKEJI