Real D style designs 3D glasses lens base 2, 4 curve. 0.75mm thickness hard Circular polarized Lens Real D style designs 3D glasseslens base 2, 4 curve0.75mm thickness hard Circular polarized LensPolarized efficiency 99.7%, transmittance 43.5%Fits for 3D game, 3D film, 3D TVCE, FDA and SGS standard approved WEN ZHOU OLU 3D EYEWEAR CO., LTD. is a professional 3d glasses manufacturer in China since ...