Bridge (DBL) about 3/5 inches (16mm)

Transparent lenses with coating

Frame width about 5 1/16 inches (128mm)

Frame width about 5 5/16 inches (135mm)

block 60% within 460nm

4 Pack Polygon Retro Bifocal Reading Glasses Edgy Readers BR2129 Magnification Strength:+2.50 Bridge (DBL) about 3/5 inchesAcrylic lens, plastic frame with spring hinges Frame width about 5 3 4 inches (146mm) Lens width about 2 1 16 inches (52mm) Lens height about 1 9 16 inches (39mm) Bridge (DBL) about 1 2 inches (13mm) 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 distance