High-quality linear polarizing film is used in 3D glasses/magic mirrors/magic shows/projectors. It is an important component to help display images and is widely used in any field. The polarizing film does not need to be replaced every time unless the polarizing film is scratched; if you are a beginner, it is recommended to use a professional polarizing film removal machine and laminating machine to replace the polarizing film. High polarizing efficiency, high light transmittance can support double-sided protective lenses, anti-scratch type: no adhesive color: black material: TAC+ PVAS size: 30 x 20 cm, thickness: 0.17 mm package content: 5x polarizing film only the above Package contents, excluding other products. Note: Light shooting and different monitors may cause the color of the items in the pictures to be slightly different from the real thing. The measurement allowance is +/- 1-3 cm.