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"TRY FOR FREE FOR 30 DAYS\n\n We offer that you can try on your new glasses and more importantly test if you, just like thousands of other people also experience a positive effect,&nbsp;before you pay for them.\n\n You just choose Klarna at checkout and then you have 30 days to change your mind before you pay. No interest or fees when you pay on time!\n\n\n PRINCETON\n Our largest glasses that are well suited for intensive use, for larger screens. With its dominant frame, this is a pair of glasses that will not be hidden away. Size: 58-18-148 What does this mean? See our size guide&nbsp;here\n Effective Blue light glasses\n The Blueglass glasses effectively block the harmful LED light from your digital devices such as computer, telephone, tablet and TV.\n The Danish Technological Institute continuously tests our various models to ensure the quality of our blue light glasses. This guarantees that the glasses always live up to our high requirements that they must protect up to 92% of the violet and blue light.\n The Princeton&nbsp;comes with a large frame and a matching lens size.\n You can experience this by wearing Blueglass glasses: You get a better and deeper sleep. You experience fewer headaches. Your eyes feel less dry and tired.\n That's why you should choose us:\n We offer satisfaction guarantee - 100% satisfaction, or money back. 31 day free return policy. Fast&nbsp;delivery with track & trace.\n The glasses are sent together with a case and a fabric bag so you can easily take the glasses with you on the go.\n\n All our glasses are developed in Denmark, and quality tested at our office in Aarhus. Should any complications arise with your order, you are of course welcome to use either your right of complaint or your satisfaction guarantee.\n&nbsp;"
<https://www.blueglassdenmark.com/collections/bestsellers/products/princeton-blue-light-mat-sort>