EYEKEEPER BIFOCAL SUNGLASSES - A crescent shape on the bottom part of the lenses have magnification

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Lens height about 1 7/8 inches (48mm)

Bridge (DBL) about 3/8 inches (10mm)

Bridge (DBL) about 7/9 inches (20mm)

Oversized Square Trendy Bifocal Reading Glasses BR1555 Color:Black EYEKEEPER BIFOCAL SUNGLASSES - AAcrylic lens, plastic frame with spring hinges Frame width about 5 1 2 inches (139mm) Lens width about 1 15 16 inches (49mm) Lens height about 1 11 16 inches (42mm) Bridge (DBL) about 1 2 inches (14mm) Temple length about 5 1 2 inches (140mm) 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