Bridge (DBL) about 9/16 inches (15mm)

Lens width about 2 inches (51mm)

Frame width about 51 1/16 inches (145mm)

Due to the difference between different monitors

Lens width about 1 5/8 inches (41mm)

Titanium Rimless Polycarbonate Bifocal Sunglasses PCSG1504 Computer Glasses Men Bridge (DBL) about 9/16 inchesTitanium without spring hinge Lens width about 2 3 8 inches (60mm) Lens height about 1 7 16 inches (37mm) Bridge (DBL) about 11 16 inches (18mm) Temple length about 5 5 16 inches (135mm) EYEKEEPER BIFOCAL SUNGLASSES 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.