Lens height about 1 7/16 inches(37mm)

Head size: Narrow

Lens width about 1 3/4 inches(45mm)

memory titanium frame without spring hinges

Head Size: Medium

4 Pack Cool Modern Bifocal Reading Sunglasses SBR2108 Magnification Strength:+1.50 Lens height about 1 7/16Plastic frame with spring hinges Frame width about 5 7 16 inches (138mm) Lens width about 1 7 8 inches (48mm) Lens height about 1 9 16 inches (40mm) 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.