4 Pack Rectangle Bifocal Reading Sunglasses SBR2109 Magnification Strength:+3.00 Bridge (DBL) about 9/16 inches

Bridge (DBL) about 9/16 inches (14mm)

Head Size: Medium to Wider

FDA REGISTERED - Fully registered with the Food and Drug administration to import Class I medical devices

metal frame without spring hinges

Frame width about 5 7/16 inches (138mm)

4 Pack Rectangle Bifocal Reading Sunglasses SBR2109 Magnification Strength:+3.00 Bridge (DBL) about 9/16 inchesPlastic frame with spring hinges Frame width about 5 5 16 inches (135mm) Lens width about 1 7 8 inches (47mm) Lens height about 1 7 16 inches (36mm) Bridge (DBL) about 1 2 inches (12mm) 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.