High-quality linear polarizer film for 3D glasses, mirrors, magic shows, and projectors. An essential component for image display, widely used in various applications. The polarizer film does not require frequent replacement unless scratched. For beginners, it is recommended to use a professional polarizer removal machine and film laminating machine when replacing the film. Features high polarization efficiency and high light transmittance. Provides double-sided protective layer for scratch resistance. Type: No adhesive Color: Black Material: TAC + PVA Size: 30 x 20 cm, Thickness: 0.17 mm Package Contents: 5 x Polarizing Film Sheet Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.