Features: Brand new and good quality Enhancer your scientific experiments and photography with our anti polarized filter! Made from good quality PVA matter, this filter provides excellent light control and gules uces blue light exposure. Perfect for researcher, students, and photography enthusiasts who want to explore the fascinating world of light and color. Whether in a classroom or studio, our filter is suitable for experiments, such as double refraction and light scattering, as well as for enhancing photography settings. Experience the wonders of polarization and discover the secret of light with our Anti Polarized Filter. Get ready to see world in a whole new way! Specifications: matter:PVA Size:Approx.30x20cm/11.81x7.87inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 2Pcs Polarizing Film