PORADAY Product Features 1. You have greater visibility into the water when engaging in fishing or water sports. 2. You can better see objects when it is very bright. 3. There is less strain on your eyes trying to fight through glare. 4. Colors are not distorted. 5. Reflections (such as off water or glass) are cut down. Tips 1. Do not use paper towels or clothing to clean the sunglasses, otherwise skin may be scratched. 2. Never put sunglasses under the front window of a car, especially in summer. Prolonged exposure to oven-like temperatures in the car can deteriorate the lens. 3. Exquisite package, it’s great gift idea for birthdays, Christmas, Valentine's Day, Father's Day, Anniversary and other holidays. What You Get: 1*glasses 1*Cleaning soft cloth 1*Cleaning soft fabric pouch 1*Mini screwdriver 1*Exquisite Box Packaging Please contact our support team or send us message directly via when your item needs warranty. TIPS FOR CLEANING: Use a gentle lens solution. To avoid scratches. Never wipe the lens when they're dry (there may be dust or particles). Use Soft materials such as cleaning cloths, Don't use paper towels or other rough materials.PROVIDE BEST PRODUCT AND CUSTOMER SERVICE ?In case any accident of the shipping or unexpected damage happened to these square blue light blocking glasses. Please contact us without hesitation, we will reply within 24 hours to solve the problem until satisfaction. You have no risks to try. And we will provide best product and customer service to you. VINTAGE DOUBLE BRIDGE DESIGN ?These vintage aviator glasses are keeping up closely with the latest retro fashion trend, novel look that is sure to become a classic.They are suitable for high-end accessories and daily clothing, also for many occasions such as shopping, traveling, taking photos, party, dance, traveling, and so on, beautiful pose for photo shooting. PROTECT YOUR EYES ? We live in the digital world, Digital screen can emit bright blue light that cause eye strain even dizziness, using blue light lenses it can reduce screen glare, increase benefit light, can effectively ease dry and tired eyes, reduce blurred vision, It is perfect for men and women. RETRO SQUARE FRAME ?The classic 70s vintage double bar square anti eye strain glasses are made of high-quality acetate fiber and reinforced metal hinges, ultralight plastic frame selection allows you to experience zero burden; Screw tightness is moderate, temples are easy to open and close;one-piece nose pad fit more to the nose.shock resistant and water proof, is the best choice for eyewear enthusiasts. BLUE LIGHT BLOCKING LENS ?Provide 100% UV400 blue light blocking protection. provides eye health protection for peoples who work with computer mobile phone or other digital equipments, and for who watch TV often. It can relieve the eyestrain symptoms of prolonged computer blue ray exposure, and avoid the appearance of myopia.