1.high quality used for 3D movies, books etc. 2.foldable PC plastic frame 3.hardened surface 4.1 color silk printing Detailed Product Description1.ABS plastic frame 2.polarized lenses 0.72mm thickness 3.Polarizing efficiency = 99.7%4.Transmittance = 43.5%Usage:cinema system like: Imax, Reald, Masterimage etc,3D theaterspassive 3D TVsprojectors.Two projectors are synchronized and project two ...