Gunnar Optiks GLI-00106 Gliff Full Rim Premium 3D Glasses with RealD Compatibility, Onyx Frame Finish (Discontinued by Manufacturer) RealD compatible lenses offer distortion free polarization with wide-field viewing to enhance 3D effects i-AMP3D lens technology is specifically engineered to reduce digital eyestrain, enhance viewing detail and protect the eyes in order to stay focused Made of acetate with an onyx frame finish Full rim frame and fastener free hinge design for incredible durability, unique style and comfort Comes with a 1-year limited warranty against manufacturing defects