1)Metal frame,0.72mm TAC circular polarized lenses 2)Polarized efficiency 99.7%,transmittance 43.5%. 1)Metal frame, 0.72mm TAC circular polarized lenses 2)Polarized efficiency 99.7%,transmittance43.5%.3) any lens shape is avaiable* China Olu 3D Glasses factory is the leading manufacturer of 3D products since 2004, Our main products include Paper 3D Glasses,Plastic 3D Glasses,Anaglyphic 3D Glasses ...