If you spend as much time gaming as we do and your eyes feel heavy, restless and feeling as though you have not had enough sleep, it is probably the blue-light emitted from digital screens which leads to migraines, strained eyes and insomnia. An effective solution are blue-light blocking computer glasses. Blue Light Lenses When using digital devices such as Mobile Phones, Tablets and Laptops their screens emit a whole spectrum of visible light, including High Energy Visible (HEV) light, which we see as the colour blue, we are exposing our eyes & brains to HEV more and more, which can lead to migraines, double vision, blurry & and insomnia. Computer Glasses, also known as Blue-Light Blocking or Anti-Blue Light lenses are a scientific solution to a modern problem. They block out the HEV-light, reducing the strain on the eyes. UV 400 Sunglasses Lenses Wearing sunglasses that block 100 percent of UV rays is the best way to protect your eyes from the sun. Ordinary tinted sunglass lenses only cut down ambient light that reaches the eye, or light transmittance. To be considered UV sunglasses, the lenses are required to block 75% to 90% of visible light and must offer UVA and UVB protection to block 99% of ultraviolet radiation. Ideally, you want sunglasses that offer UV 400 protection since they offer virtually 100% protection from UV rays. Gamer Glasses are certified UV400 Lenses. All fitting instructions are supplied within the kit. If you require any assistance(Click into Your Orders > Click on order > Contact Seller). Each Gamer Glasses pack contains: Glasses Frame Detachable Padded Surrounds 1 Sets of Anti Blue Light Lenses (Clear) 2 Sets of UV400 Sunglasses Lenses (Black and Gray) and 1 set of evening / night lenses (Yellow). Lens Cleaning Cloth, Hard Shell Zip Lock Case, Silky Bag and 1 set of straps.