... One piece per PP bagMaterial: CE, RoHS compliance ABS plastic frame, imported polarized lensesProportion: 1.2g/cu. CmMoulding constriction ... video display system.2. Used in 3D TV, displayer, game machine, virtual interactivity sets, virtual aviation simulator, medical ... 7 daysUsage3d TV(LG,Philips etc.),cinemas,3d computer game,3d classesroomSystemRealD/Masterimage systemsOur other type 3D glasses ...