Lens height about 1 15/15 inches (49mm)

Bridge (DBL) about 1/2 inches (13mm)

Lens width about 21/16 inches (52mm)

Metalless and Screwless Design

Frame width: 5 1/4"(133mm)

Lightweight Bifocal Blue Light Blocking Readers DSSG1803 feed-cl0-Reading Glasses Lens height about 1 15/15Acrylic lens, metal 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 9 16 inches (40mm) Bridge (DBL) about 1 2 inch (13mm) Temple length about 4 15 16 inches (125mm) 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