paper cardboard 3d glasses: 2*250g special 4c printing cardboard with high rigidity,protect from bending. 0.18mm PET lenses with high transmittance. Legs with special design,not easy to slide,take comfortably. Produce profile:P1RC paper Red Cyan 3D glasses this paper 3d glasses used for 3d theater and 3d TV,disposable. Produce structure:2*250g 4c cardboard,0.18mm PET color filter lenses,special assembly.Can make as customers' requests in color, shape and printing. Optics parameter:Indirect transmittance 90%,direct transmittance15%.For the optics parameter,we can do as the customers requirements. Usage area:3D theater system,science education medical 3D equipment,3D theater,family 3D TV,3D computer game,3D book. The paper glasses are with good effect of 3d image .