protect your kid's eyes in the digital age with cruz kids, a new line of protective glasses from gunnar, the leading experts in blue light blocking technology. designed with a durable nylon frame and complete with smudge resistant lenses that come in both clear (blocks 35% blue light) and amber (blocks 65% blue light) tint options, these glasses are clinically proven and doctor recommended. your kid's eyes couldn't be in safer hands. glasses come sized for kids age 4 to 8 and 8 to 12 with a selection of colors to choose from. plus, receive a protective glasses case with backpack clip