PATIKIL 6.5" Polarized Film Sheets, 2 Pack Adhesive Polarizer Linear Polarizing Filter for Screen, Photography, Lighting, 151mmx79mm, 90 Degree

The polarizing film sheet is suitable for light scattering, polarized light projects/experiments, as well as repair or upgrade dashboard displays, electric motorcycle dashboard displays, small LCD screens, projector screens, cell phones, electronic watches and other LCD display devices. Material: Composite; Thickness: 0.25mm; Dimension: 151mmx79mm The material is about 1mm with protective backing sheets on both sides. Simple and convenient to use, clean the dust and adjust the angle. Then cut it into the desired shape and stick it on. Polarizing material is on one side of a plastic substrate that scrambles polarization. You need to choose which direction the light passes through depending on your use. a) light through polarizing side first, to analyze polarization from an object; b) light through substrate first, to create polarized light to illuminate an object. Remember to take off the protective film from both sides before using it.