Check the listing for details. 4Pcs Polarized Film Sheets 12.9" Polarizer Linear Filter 26.6x20cm 90 Degree. Condition: New. Listed at 14.81 USD. 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, electronic watches and other LCD display devices.Specification Material: Composite materialThickness: 0.25mm / 0.001 inchDimension: 26.6x20cm / 10.5x7.9 inchPacking List: 4 x Polarized Film SheetsAdvantageThe polarized film measures a thickness of 0.25 millimeters. It comes with protective films on both sides, with one side being adhesive and the other side non-adhesive (Need to remove the protective film which is on the adhesive side when you try to use it).InstructionKeep the device powered on, align the adhesive side of the film onto the screen, and rotate the polarized film 360 Degrees clockwise.