Bridge(DBL) about 11/16 inches(18mm)

Lens height about 1 1/8 inches (29mm)

Solid Construction: Meticulously built to withstand regular use without succumbing to damage

Polycarbonate Lens

4 Pack Stylish Bifocal Reading Sunglasses SBR2027 Magnification Strength:+3.00 Bridge(DBL) about 11/16 inches(18mm)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 1 2 inches (38mm) Bridge (DBL) about 7 16 inches (11mm) 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.