The glasses can be used in public places of 3D cinemas and theaters. They can only be used for once. The basic structure is copper-print paper with four colors printed, and specially made polarizer or color filter film. Assembled based on specific theory, the glasses can be made into many different colors, pictures and shapes as customers require, with fresh colors, superior printing and precise technology. Parameter: Polarizing efficiency>99.7%; Transmittance>43.7%; Transmittance: 85%--99.7%.