5 Pack Blue Light Blocking Bifocal Readers DSSG1805

Acrylic lens, plastic frame with spring hinges Block 98% blue light, serious color distortion  Frame width about 5 1/2 inches (140mm) Lens width about 2 5/16 inches (59mm) Lens height about 1 5/8 inches (42mm) Bridge (DBL) about 9/16 inches (15mm) Temple length about 5 1/8 inches (130mm) EYEKEEPER BIFOCAL GLASSES - A crescent shape on the bottom part of the lenses have magnification, which is for reading and close-up work. And the other parts of the lenses have no magnification,which is for distance viewing.