Ematic 3D Glasses Family Pack with 2 Adult Glasses and 2 Child Glasses: * For use with passive 3D TVs * Comfortable lightweight design * Includes 2 adult glasses and 2 child glasses * .26mm circular polarized lens * Transmittance: 43.5% * Polarized efficiency: 99.7% * Passive 3D Glasses compatible with RealD 3D