Lens width about 2 1/16 inches (53mm)

Frame width about 5 1/14 inches (133mm)

Head Size: Medium to Wider

Bridge (DBL) about 5/8 inches (15mm)

Frame width about 53/8 inches (137mm)

4 Pack Double Bridge Square Bifocal Reading Glasses BR2034 Magnification Strength:+2.00 Lens width about 2 1/16Acrylic lens, plastic frame with spring hinges Frame width about 5 5 16 inches (135mm) Lens width about 1 7 8 inches (47mm) Lens height about 1 9 16 inches (39mm) Bridge(DBL) about 1 2 inches (12mm) Temple length about 5 5 16 inches (135mm) 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