Lightweight glasses with over 80% blue light cut, perfect for long hours of screen viewing. 99.99% UV cut. - Product Name: High-Spec Glasses - Blue Light Cut Rate: Over 80% - Bonus: Comes with a gift - Usage: Ideal for long hours of screen viewing - Design: Lightweight and comfortable I opened the package to check the product. I am selling it because I use different glasses due to my strong myopia.