?GUARANTEE?-We stick to pay attention to product quality, each of our product enjoys 90 days warranty. if there's any quality problems please feel free to contact us. ?FLEXIBLE AND DURABLE TR90 MATERIAL?-the frame material of the kids blue light glasses is TR90, which is super toughness, wear-resistance, stress-resistance, thus the frame is not easily deformed or damaged, don't worry about the game glasses being damaged by your child.These kids blue light blocker glasses are made of TR90 full rim combined with durable half metal frame, anti-blue light & anti-radiation lenses, all the quality details ensuring you a perfect wearing experience. ?REDUCE MYOPIA RISK?-Anti blue light glasses for kids can protect kids vision from anti harmful blue light, screen flicker, anti-fatigue, and provide all-day protection,without getting that harsh yellow found in other blue light glasses, which means your children can enjoy playing games without worry about eye fatigue, blurred vision and headache. ?COLORFUL CUTE FRAME? -The colorful patterns and frame shapes of the gaming glasses are designed by the COOLOO designer team. The cute frames can be matched with all kinds of kid‘s facial forms. The multiple patterns and colors can be matched with your kids’ different outfits in a daily life.Classic design computer glasses for kids, is suitable for both boys and girls from ages 3 to 15. ?PROTECT EYES OF KIDS?- The anti-blue light glasses kids& anti-radiation coated lenses glasses for eyes strain are best used for long hours of computer or TV use to reduce symptoms of eyestrain and maintain natural sleep patterns.