First of all! The glasses that were the delivery here, are absolutely perfect! Better than the Schutter technology with "Flimmerglässern" over his face! The Easy 3D glasses are lightweight and sits very well! I have therefore two more ordered here on Amazon, but this did not come directly from Amazon. I have a feeling that does not have the same quality, the re-ordered eyeglasses, which were than when delivery here ?? At one of the spectacle is the "glasses Glass" which is actually made of plastic is deformed. It looks as if curl glasses Glass !? So I asked directly a warranty claim and is currently awaiting response ...