Perfect fit for all work. The FLEXY LOCK readers are made of ultralight TR90 and have special temple tips with grid function. Thus, the glasses can be securely locked on the head. Even working overhead and deep bent is thus easily possible. Thanks to the TR90 material, the frame is not only lightweight and highly durable but also R/X able. That‘s why we also supply the Flexy lock with demo lenses. As a reading aid, the Flexy Lock is equipped with Blueblocker reading lenses. These are particularly suitable for work in front of a screen, laptop or mobile phone.