About This Free Spin：Rotating the polarizing film on demand and bringing an excellent polarization effect Product data：4 polarized film, 1 squeegee, and 8 wipes. Packing with an anti-folding courier package Teaching purpose: Non-sticky polarizing film can be reused for physics optical demonstrations and reducing glare in photography Experiment：Polarized filter support you to perform experiments. Such as experiments related to birefringence, light scattering, polarized light experiments, and light reflection Protective film: 7.8x11.8 inches (20x30 cm) polarized film sheet, 0.16 mm thick, has both side protective film, cut it to suitable shape. Tips: You need to tear off the protective film before use High Quality：Made of plastic material with high-temperature resistance, the polarized film has a high polarization rate of 99.99% and a high transmittance of non-polarized light, providing a clear display Overview Brand : Selens Material : Plastic Photo Filter Thread Size : 30 Millimeters Coating Description : No Coating Photo Filter Effect Type : Polarizer Water Resistance Level : Waterproof Product Dimensions : 11.8"L x 7.8"W Set Name : 4 PCS
