【Polarized film】It has a high polarization rate of 99.99% and allows a specific polarization of light waves to pass through and block other light. 【Premium Material】Designed with high-quality PET materials, our linear polarized film can effectively enhance visual clarity and reduce glare on a variety of surfaces, offering exceptional durability and long-lasting performance. 【Widely Applications】Physics education, LCD screen repairing, experimental, photography, etc. Meet your different needs. 【Product parameter】Dimension: 7.8x11.8 inches/ 20x30cm, Thickness: 0.16mm, Package: 2x Adhesive Polarizing film sheets and 2x non-adhesive polarizing film. 【Tips for Use】After the polarizing filter is cleaned of dust, peel off the protective film and confirm the sticky side when in use. Adjust the angle, cut it into the corresponding shape, and stick it for use. Please note that the polarizing filter may not be suitable for surfaces with significant curvature, such as eyeglass lenses.