polarized 4d glasses for watching 3d/4d movies; lens: 0.28mm linear polarized lens; frame: ABS plastic frames; various kinds of colors lens are available protected by PET film.customized logo printing is accepted CE, FDA and SGS standard approved     WEN ZHOU OLU 3D EYEWEAR CO., LTD. is a professional 3d glasses manufacturer in China since 2003. We mainly produces various kinds of 3d glasses, such as paper 3d glasses, paper 3d viewer, binoculars, plastic 3d glasses and metal 3d glasses etc. Welcome to visit our factory for further cooperation.