● Lens width: 48 millimeters ● BLUE LIGHT BLOCKING LENS - can effectively block 100% harmful UV rays and relieve our eye fatigue ● HIGH QUALITY MATERIALS - This vintage blue light blocking glasses is made of anti-blue light lens, soft silicon nose pads, durable metal hinge, all the details ensure you a perfect performance. ● SOFT SILICONE NOSE PADS - The eyeglasses' silicone nose pads can adapt to different nose shape. Reduce the burden on your bridge of the nose ● SLEEP BETTER - Better sleep for you, blue blocker for your eyes and guardian for your health ● 30 DAY - We promise 100% money back within 30 days for any reasons of dissatisfaction with prompt customer service. Buy with confidence.